The gland is an organ in the body that plays a crucial role in the endocrine system by producing and releasing hormones into the bloodstream. Endocrine glands, such as the pituitary gland, thyroid gland, and adrenal glands, secrete hormones that regulate and coordinate various bodily functions, including growth, metabolism, reproduction, and stress response. These hormones act as chemical messengers, traveling through the bloodstream to target cells or organs, where they exert their specific effects. Glands of the endocrine system work together to maintain hormonal balance and ensure the proper functioning of the body's physiological processes.

What is "gland"?

gland

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The tarsal gland refers to the specialized sebaceous glands found in the eyelids. These glands produce and secrete sebum, an oily substance, onto the surface of the eyelids. While they are often classified as exocrine glands due to their secretion onto an external surface, they are still considered a part of the endocrine system as they produce and release hormones involved in maintaining the health and lubrication of the eyes.

What is "tarsal gland"?

tarsal gland

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The pituitary gland, often referred to as the "master gland," is a small, pea-sized gland located at the base of the brain. Despite its size, it plays a crucial role in the endocrine system, acting as a control center for hormone production and regulation. The pituitary gland produces and releases a variety of hormones that influence and control the functions of other endocrine glands throughout the body. It is responsible for regulating growth, metabolism, reproduction, stress response, and many other essential physiological processes. The pituitary gland's intricate hormonal control system makes it a vital component of overall hormonal balance and optimal bodily function.

What is "pituitary gland"?

pituitary gland

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The pineal gland is a small endocrine gland situated deep within the brain, specifically in the epithalamus region. Often referred to as the "third eye," it plays a key role in regulating the body's sleep-wake cycle and circadian rhythm. The pineal gland produces the hormone melatonin, which is primarily responsible for controlling sleep patterns and promoting a sense of relaxation. Additionally, the pineal gland is believed to have other functions, such as regulating mood, and reproductive hormones, and possibly influencing the body's immune system. While its exact role is still being explored, the pineal gland holds significant importance in maintaining a healthy sleep-wake cycle and overall well-being.

What is "pineal gland"?

pineal gland

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The thyroid gland is a butterfly-shaped endocrine gland located in the neck region, below the Adam's apple. It plays a crucial role in regulating metabolism and controlling various bodily functions. The thyroid gland produces thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3), which are responsible for maintaining energy levels, body temperature, heart rate, and growth and development. These hormones also influence the functioning of other organs and systems in the body. The thyroid gland is regulated by the pituitary gland through the secretion of thyroid-stimulating hormone (TSH), which controls the production and release of thyroid hormones. Imbalances in thyroid hormone levels can lead to various health conditions, such as hypothyroidism or hyperthyroidism. Overall, the thyroid gland is vital for maintaining optimal metabolic activity and overall well-being.

What is "thyroid gland"?

thyroid gland

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The parathyroid gland is a small, pea-sized endocrine gland located near the thyroid gland in the neck. Despite their small size, they play a crucial role in maintaining calcium and phosphorus balance in the body. The parathyroid glands produce parathyroid hormone (PTH), which helps regulate calcium levels by stimulating the release of calcium from bones into the bloodstream, increasing calcium absorption from the intestines, and reducing calcium excretion through the kidneys. This hormone also acts to regulate phosphorus levels. The proper functioning of the parathyroid glands is essential for maintaining bone health, nerve and muscle function, and overall mineral balance in the body.

What is "parathyroid gland"?

parathyroid gland

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The thymus is a glandular organ located in the upper chest region, behind the breastbone. It plays a vital role in the development and maturation of T lymphocytes, a type of white blood cell that is crucial for immune system function. The thymus is most active during childhood and adolescence, gradually decreasing in size and activity as we age. It helps educate and train T cells to recognize and respond to foreign substances, such as pathogens or cancer cells while avoiding attacks on the body's own tissues. The thymus also produces several hormones, such as thymosin, that contribute to the maturation and proper functioning of immune cells. Overall, the thymus is an essential component of the immune system, contributing to its ability to defend against infections and maintain overall health.

What is "thymus"?

thymus

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The adrenal glands are small triangular-shaped endocrine glands located on top of each kidney. They consist of two distinct regions: the outer adrenal cortex and the inner adrenal medulla. The adrenal cortex produces hormones called corticosteroids, which play a vital role in regulating various physiological processes, including metabolism, immune response, and stress response. The adrenal medulla produces adrenaline and noradrenaline, which are involved in the body's fight-or-flight response to stress and help regulate blood pressure and heart rate. Together, the adrenal glands play a crucial role in maintaining homeostasis and responding to stressors in the body.

What is "adrenal"?

adrenal

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Aldosterone is a hormone produced by the adrenal glands as part of the endocrine system. It belongs to a group of hormones called mineralocorticoids and is primarily involved in regulating electrolyte balance, particularly the reabsorption of sodium and excretion of potassium in the kidneys. Aldosterone acts on the distal tubules of the nephrons, promoting sodium retention and potassium excretion, which helps maintain blood pressure, blood volume, and overall fluid balance. Its secretion is regulated by the renin-angiotensin-aldosterone system and influenced by factors such as blood volume, sodium levels, and the presence of certain hormones. Overall, aldosterone plays a crucial role in maintaining electrolyte homeostasis and blood pressure regulation in the body.

What is "aldosterone"?

aldosterone

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Corticosteroid is a class of hormone produced by the adrenal glands, which plays a vital role in the endocrine system. These hormones, such as cortisol, regulate various physiological processes, including metabolism, immune response, and stress response. Corticosteroids have potent anti-inflammatory properties and are commonly used in medical treatments to reduce inflammation and suppress the immune system. However, long-term use of corticosteroids may lead to side effects, highlighting the importance of careful administration and monitoring under medical guidance.

What is "corticosteroid"?

corticosteroid

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Adrenaline, also known as epinephrine, is a hormone produced by the adrenal glands. It plays a crucial role in the body's response to stress and emergencies. When released into the bloodstream, adrenaline triggers various physiological changes, such as increased heart rate, elevated blood pressure, and heightened mental alertness. These effects prepare the body for a "fight-or-flight" response, helping to mobilize energy and enhance physical performance. Adrenaline is an essential component of the body's stress response system and contributes to our ability to cope with challenging situations.

What is "adrenaline"?

adrenaline

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Adrenocorticotrophic hormone (ACTH) is a hormone produced by the anterior pituitary gland. It plays a crucial role in regulating the production and release of cortisol from the adrenal glands. ACTH stimulates the adrenal cortex, which is responsible for producing various hormones, including cortisol. By acting on the adrenal glands, ACTH helps maintain the body's response to stress, regulates blood sugar levels, and supports immune function. ACTH release is controlled by a feedback mechanism involving the hypothalamus and the adrenal glands, ensuring the proper balance of cortisol in the body.

What is "adrenocorticotrophic hormone"?

adrenocorticotrophic hormone

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Antidiuretic hormone (ADH), also known as vasopressin, is an important hormone of the endocrine system. It is produced by the hypothalamus and released by the pituitary gland. ADH plays a crucial role in regulating water balance and maintaining proper fluid levels in the body. It acts on the kidneys to decrease urine production and increase water reabsorption, thereby conserving water and preventing excessive fluid loss. ADH also has vasoconstrictive effects, helping to regulate blood pressure. Overall, ADH helps to maintain body fluid homeostasis and ensure proper hydration.

What is "antidiuretic hormone"?

antidiuretic hormone

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Growth hormone (GH), also known as somatotropin, is a vital hormone involved in growth and development within the endocrine system. Produced by the pituitary gland, GH stimulates the growth of bones, tissues, and organs in the body. It plays a key role in promoting linear growth during childhood and adolescence. Additionally, GH is involved in regulating metabolism, promoting protein synthesis, and influencing cell growth and division. It also affects the balance of other hormones in the body. Overall, growth hormone is essential for proper growth, development, and maintenance of various physiological processes in the body.

What is "growth hormone"?

growth hormone

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Luteinizing hormone (LH) is a hormone produced by the pituitary gland that plays a vital role in the reproductive system. In females, LH triggers ovulation and promotes the production of progesterone. In males, it stimulates the production of testosterone. LH is essential for the proper functioning of the ovaries and testes, contributing to fertility and reproductive health.

What is "luteinizing hormone"?

luteinizing hormone

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Follicle-stimulating hormone (FSH) is a hormone released by the pituitary gland that plays a vital role in reproductive function. In females, FSH stimulates the growth and development of ovarian follicles, which contain eggs. In males, it stimulates the production of sperm. FSH is crucial for the proper functioning of the reproductive system and the maintenance of fertility.

What is "follicle-stimulating hormone"?

follicle-stimulating hormone

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Oxytocin is a hormone involved in various physiological processes, but it is best known for its role in childbirth and lactation. It is released by the pituitary gland and acts as a signal for uterine contractions during labor and helps facilitate milk letdown during breastfeeding. Oxytocin also plays a role in social bonding, trust, and attachment, influencing feelings of love and empathy. It is often referred to as the "bonding hormone" due to its effects on social behavior and emotional connections.

What is "oxytocin"?

oxytocin

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Prolactin is a hormone that plays a crucial role in lactation, stimulating milk production in the mammary glands after childbirth. It is also involved in reproductive functions, such as regulating menstrual cycles and influencing fertility. Additionally, prolactin has effects on various other systems in the body, including immune function, metabolism, and behavior.

What is "prolactin"?

prolactin

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Thyroid-stimulating hormone (TSH), also known as thyrotropin, is a hormone produced by the pituitary gland that regulates the function of the thyroid gland. It stimulates the thyroid gland to produce and release thyroid hormones, which play a crucial role in controlling metabolism, growth, and development in the body. TSH acts as a key regulator of thyroid hormone production, ensuring the proper functioning of the thyroid and maintaining overall hormonal balance.

What is "thyroid-stimulating hormone"?

thyroid-stimulating hormone

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Renin is an enzyme produced by specialized cells in the kidneys called juxtaglomerular cells. It plays a crucial role in regulating blood pressure and fluid balance by initiating a cascade of reactions that lead to the production of angiotensin II, a potent vasoconstrictor. Renin acts as a key player in the renin-angiotensin-aldosterone system, which helps regulate blood volume, electrolyte balance, and systemic vascular resistance.

What is "renin"?

renin

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Angiotensin is a hormone involved in the regulation of blood pressure and fluid balance. It is produced in response to low blood pressure or decreased blood flow in the kidneys. Angiotensin acts on blood vessels, causing them to constrict and increase blood pressure. It also stimulates the release of aldosterone from the adrenal glands, which promotes the reabsorption of sodium and water in the kidneys, further regulating fluid balance. Overall, angiotensin plays a crucial role in maintaining proper blood pressure and fluid levels in the body.

What is "angiotensin"?

angiotensin

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Erythropoietin is a hormone that regulates the production of red blood cells. It is produced primarily in the kidneys in response to low oxygen levels in the blood. Erythropoietin stimulates the bone marrow to increase the production of red blood cells, which carry oxygen throughout the body. This hormone plays a critical role in maintaining adequate oxygen supply to tissues and organs, especially during times of reduced oxygen availability or in conditions such as anemia.

What is "erythropoietin"?

erythropoietin

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Glucagon is a hormone produced by the pancreas that helps regulate blood sugar levels. It acts to increase glucose levels in the bloodstream by stimulating the liver to convert stored glycogen into glucose, which can be released into the bloodstream for energy. Glucagon plays a crucial role in maintaining blood sugar balance and preventing hypoglycemia (low blood sugar).

What is "glucagon"?

glucagon

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Insulin, produced by the pancreas, is a vital hormone in the endocrine system that controls the metabolism of carbohydrates, fats, and proteins. It promotes the absorption of glucose from the bloodstream into cells, where it is used for energy or stored for later use. Insulin also helps regulate the storage of excess glucose in the liver and muscles as glycogen. By regulating glucose levels, insulin plays a key role in maintaining stable blood sugar levels and overall energy homeostasis in the body.

What is "insulin"?

insulin

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Estrogen is a hormone primarily produced by the ovaries in females, although it is also present in smaller amounts in males. It plays a crucial role in the female reproductive system and has various effects on the body. Estrogen is responsible for the development of secondary sexual characteristics in females, such as breast development and the widening of the hips. It also plays a role in the regulation of the menstrual cycle and is involved in the maintenance of bone health. Additionally, estrogen affects mood, cognition, and cardiovascular health. Overall, estrogen is an important hormone involved in reproductive processes and the overall well-being of individuals.

What is "estrogen"?

estrogen

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Progesterone is primarily produced by the ovaries and plays a crucial role in regulating the menstrual cycle and supporting pregnancy. It helps prepare the uterus for implantation of a fertilized egg and maintains the uterine lining during pregnancy. Progesterone also contributes to the development of mammary glands and helps regulate various aspects of reproductive function. It works in conjunction with other hormones to maintain hormonal balance and support reproductive health.

What is "progesterone"?

progesterone

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Thyroid hormone refers to the hormones produced by the thyroid gland, primarily thyroxine (T4) and triiodothyronine (T3). These hormones are essential for regulating metabolism, growth, and development in the body. They influence various physiological processes, including energy production, body temperature, heart rate, and digestion. Thyroid hormone also plays a crucial role in maintaining healthy bones, brain function, and reproductive health.

What is "thyroid hormone"?

thyroid hormone

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Parathyroid hormone is a hormone secreted by the parathyroid glands that plays a crucial role in regulating calcium and phosphate levels in the body. It increases calcium levels in the blood by promoting its release from bones and enhancing its absorption from the intestines and kidneys. This hormone also inhibits phosphate reabsorption in the kidneys, thus helping to maintain the balance of these essential minerals in the body.

What is "parathyroid hormone"?

parathyroid hormone

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Epinephrine, also known as adrenaline, is a hormone and neurotransmitter produced by the adrenal glands in response to stress or danger. It plays a crucial role in the body's "fight or flight" response, increasing heart rate, blood pressure, and energy availability to prepare the body for immediate action. Epinephrine also helps dilate airways, improve blood flow to muscles, and enhance cognitive function, aiding in heightened alertness and focus during stressful situations.

What is "epinephrine"?

epinephrine

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Norepinephrine is released by the adrenal glands and acts as both a hormone and a neurotransmitter. It plays a key role in the body's fight-or-flight response, mobilizing energy reserves and increasing heart rate, blood pressure, and blood flow to the muscles. Norepinephrine also affects mood, attention, and cognition, helping to enhance focus and arousal.

What is "norepinephrine"?

norepinephrine

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Melatonin is a hormone produced by the pineal gland that helps regulate the sleep-wake cycle and promote restful sleep. It plays a crucial role in maintaining the body's internal clock and is involved in the regulation of various biological rhythms, such as the sleep-wake cycle and seasonal changes. Melatonin levels rise in the evening, signaling the body to prepare for sleep, and decline in the morning, promoting wakefulness and alertness.

What is "melatonin"?

melatonin

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Growth hormone-releasing factor, also known as growth hormone-releasing hormone (GHRH), is a hormone that stimulates the release of growth hormone from the anterior pituitary gland. It plays a crucial role in regulating growth, metabolism, and body composition. By binding to specific receptors on the pituitary gland, GHRH triggers the production and secretion of growth hormone, which promotes tissue growth, protein synthesis, and cell reproduction throughout the body.

What is "growth hormone-releasing factor"?

growth hormone-releasing factor

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Thyrotrophic hormone, also known as thyroid-stimulating hormone (TSH), is a hormone secreted by the pituitary gland that plays a crucial role in regulating the function of the thyroid gland. It stimulates the thyroid gland to produce and release thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3), which are essential for maintaining the body's metabolism, growth, and development. TSH levels are controlled by a negative feedback mechanism, where high levels of thyroid hormones inhibit the release of TSH, while low levels stimulate its production. Imbalances in TSH can lead to various thyroid disorders, including hypothyroidism and hyperthyroidism.

What is "thyrotrophic hormone"?

thyrotrophic hormone

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Corticotropin, also known as adrenocorticotropic hormone (ACTH), is a hormone produced by the pituitary gland that stimulates the release of cortisol from the adrenal glands. It plays a vital role in regulating the body's response to stress, immune function, and metabolism. Corticotropin helps maintain the balance of cortisol levels, which influences various physiological processes, including blood pressure, glucose regulation, and inflammation.

What is "corticotropin"?

corticotropin

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The salivary gland is a part of the exocrine system and is responsible for producing and secreting saliva into the oral cavity. While salivary glands are primarily exocrine glands involved in saliva production, it's worth noting that they are indirectly influenced by the endocrine system. Hormones such as cortisol and adrenaline, produced by endocrine glands like the adrenal glands, can affect salivary gland function. These hormones can modulate salivary flow and composition, particularly in response to stress or other physiological changes. However, the primary role of salivary glands is still related to digestion and oral health rather than hormone production

What is "salivary gland"?

salivary gland

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The seminal vesicle, associated with the male reproductive system, contributes to semen production by secreting fluids that provide nourishment and mobility to sperm cells. The seminal vesicles primarily produce fructose, prostaglandins, and other substances that support sperm function. Hormonal regulation of the seminal vesicles occurs indirectly through the hypothalamic-pituitary-gonadal axis, which influences testosterone production in the testes. However, the seminal vesicles themselves do not produce hormones or play a direct role in the endocrine system.

What is "seminal vesicle"?

seminal vesicle

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A gonad is a reproductive organ that produces gametes (sperm or eggs) and is involved in the production of sex hormones. In males, the gonads are the testes, which produce sperm and the male sex hormone testosterone. In females, the gonads are the ovaries, which produce eggs and the female sex hormones estrogen and progesterone. The gonads play a vital role in sexual development, fertility, and the regulation of secondary sexual characteristics. They are regulated by a complex interplay of hormones from the hypothalamus, pituitary gland, and other endocrine organs. Disorders or dysfunctions of the gonads can lead to infertility, hormonal imbalances, and reproductive health issues.

What is a "gonad"?

gonad

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The mammary gland is a specialized glandular structure in the breast tissue of mammals, responsible for producing and secreting milk. It is influenced by hormonal signals, particularly the hormones estrogen, progesterone, and prolactin, which regulate its development and function. The mammary gland plays a crucial role in lactation and nourishing newborn offspring, making it an essential component of the endocrine system and reproductive biology.

What is "mammary gland"?

mammary gland

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The sublingual gland is a small salivary gland located beneath the tongue. It plays a crucial role in saliva production and secretion. This gland consists of multiple lobules and ducts that deliver saliva to the oral cavity. The sublingual gland helps moisten and lubricate the oral mucosa, facilitating speech, chewing, and swallowing. Its secretions contain enzymes that initiate the digestion process and protect the oral tissues.

What is "sublingual gland"?

sublingual gland

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The submandibular gland is a major salivary gland located below the jawline that plays a crucial role in producing and secreting saliva. The submandibular gland contributes to the digestive process by releasing saliva containing enzymes that aid in the breakdown of food. It helps keep the mouth moist, facilitates swallowing, and contributes to oral health.

What is "submandibular gland"?

submandibular gland

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The parotid gland is an exocrine gland located near the ear that is responsible for producing and secreting saliva into the oral cavity. Its primary function is to aid in the process of digestion by releasing enzymes and lubricating substances that facilitate the breakdown and moistening of food during chewing and swallowing.

What is "parotid gland"?

parotid gland

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A sweat gland is a small structure located in the skin that produces sweat, a clear liquid containing water, salts, and other compounds. It is an integral part of the body's exocrine system and plays a crucial role in regulating body temperature, eliminating waste products, and keeping the skin hydrated and protected. Sweat glands help maintain the body's fluid balance and prevent overheating by releasing sweat onto the surface of the skin.

What is "sweat gland"?

sweat gland

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Sebaceous gland is a small gland located in the skin that is responsible for producing and secreting sebum, an oily substance. Sebum helps to lubricate and waterproof the skin, keeping it moisturized and protecting it from drying out. These glands are most abundant in areas with high concentrations of hair follicles, such as the face, scalp, and upper back. While sebum is essential for maintaining healthy skin, overproduction or blockage of the sebaceous glands can lead to conditions like acne.

What is "sebaceous gland"?

sebaceous gland

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Accrine gland is a type of sweat gland that is widely distributed throughout the human body. These glands are responsible for producing and secreting sweat, which helps regulate body temperature. Eccrine glands play a crucial role in thermoregulation by releasing sweat onto the skin's surface, where it evaporates and cools the body. They are most abundant on the palms of the hands, soles of the feet, and forehead. Unlike apocrine glands, which are concentrated in specific areas, eccrine glands are found almost everywhere, aiding in the body's cooling mechanism and maintaining homeostasis.

What is "eccrine gland"?

eccrine gland

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The apocrine gland is a specialized type of sweat gland located in certain areas of the human body, such as the armpits and genital region. It produces a sweat-like secretion that is thicker and contains proteins and lipids. The secretions from apocrine glands are odorless, but when they come into contact with bacteria on the skin's surface, they can produce a distinct body odor. Apocrine glands are involved in regulating body temperature and may also play a role in communication and pheromone release.

What is "apocrine gland"?

apocrine gland

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Gonadotrophic hormone refers to a hormone that stimulates the function of the gonads, which are the reproductive organs. Specifically, it refers to the hormones secreted by the pituitary gland, including follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which play crucial roles in regulating the growth, development, and function of the ovaries in females and the testes in males. These hormones are essential for reproductive processes such as the maturation of eggs, ovulation, and the production of sperm.

What is "gonadotrophic hormone"?

gonadotrophic hormone

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The testis is a vital organ in the male reproductive system located within the scrotum. Its primary functions include the production and maturation of sperm cells through a process called spermatogenesis, as well as the secretion of testosterone, a hormone that plays a crucial role in male sexual development and reproductive function. The testis consists of numerous seminiferous tubules where sperm cells are produced, surrounded by supportive cells and interstitial cells that produce testosterone. The testis is essential for fertility and the maintenance of male secondary sexual characteristics.

What is "testis"?

testis

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Duct gland refers to a specific glandular structure in the human body that produces and secretes substances through a duct. These glands are responsible for synthesizing and releasing various substances, such as enzymes, hormones, mucus, or sweat, that play important roles in physiological processes and maintaining overall health. The duct serves as a passageway for the substances to be transported and delivered to specific target areas or released to the external environment. Duct glands are found throughout the body and contribute to the proper functioning of various systems and processes.

What is "duct gland"?

duct gland

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The prostate is a walnut-sized gland located in the male reproductive system, situated just below the bladder and in front of the rectum. Its primary function is to produce and secrete prostate fluid, a component of semen that nourishes and protects sperm cells during ejaculation. The prostate is also involved in the control of urine flow by surrounding the urethra, the tube that carries both urine and semen out of the body.

What is "prostate"?

prostate

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Gastrointestinal hormones are a group of hormones produced by cells within the digestive system that regulate various aspects of digestion and nutrient absorption. These hormones are released into the bloodstream and act on different target tissues and organs within the gastrointestinal tract to stimulate or inhibit certain functions. They play a crucial role in controlling the secretion of digestive enzymes, gastric acid production, motility of the gastrointestinal tract, nutrient absorption, and the feeling of hunger and satiety. Gastrointestinal hormones help maintain the balance and coordination of digestive processes, ensuring efficient breakdown and absorption of nutrients from food, and overall digestive system health.

What is "gastrointestinal hormone"?

gastrointestinal hormone

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Here you will learn some English words related to glands and hormones, such as "adrenaline", "insulin", and "oxytocin".

Mots Anglais pour "Le Systeme Endocrinien et Les Hormones"