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The Digestive System

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throat
2-
pharynx
3-
bile
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appendix
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intestine
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esophagus
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stomach
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liver
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colon
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gut
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gallbladder
12-
pancreas
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bladder
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kidney
15-
urethra
16-
pepsin
17-
saliva
throat
throat
noun
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a passage in the neck through which food and air pass

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Example
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He gargled with saltwater to ease the pain in his throat.
She cleared her throat before starting her speech.
What is "throat"?

The throat, also known as the pharynx, is a muscular tube located at the back of the mouth and nasal cavity. It serves as a passageway for both air and food. The throat plays a crucial role in the respiratory and digestive systems, allowing air to pass from the nose and mouth into the lungs, and facilitating the movement of food and liquids from the mouth into the esophagus and digestive tract. It is also involved in important functions such as swallowing, vocalization, and the protection of the airway through mechanisms like coughing and gag reflexes. The throat serves as a vital connection between the respiratory and digestive systems, enabling various physiological processes essential for human survival.

pharynx
pharynx
noun
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(anatomy) the passage in the throat that connects the mouth to the gullet

What is "pharynx"?

The pharynx is a muscular tube located behind the nasal cavity, mouth, and larynx in the human body. It serves as a common passage for both air and food, playing a crucial role in the respiratory and digestive systems. The pharynx facilitates the movement of air from the nasal cavity and mouth into the trachea, allowing for breathing and speech. It also aids in the process of swallowing by directing food and liquids from the mouth into the esophagus. The pharynx is divided into three regions: the nasopharynx, oropharynx, and laryngopharynx, each serving distinct functions in the body. It serves as a vital connection between the respiratory and digestive systems, allowing for the exchange of air and the passage of food, contributing to essential bodily functions.

bile
bile
noun
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a greenish-brown alkaline fluid that is produced by the liver in order to help the body digest fats

What is "bile"?

Bile is a digestive fluid produced by the liver and stored in the gallbladder in the human body. It plays a critical role in the digestion and absorption of fats. Bile is composed of water, bile salts, cholesterol, bilirubin, and other substances. It is released into the small intestine during the digestion process, where it helps break down fats into smaller molecules for better absorption. Additionally, bile aids in the elimination of waste products, particularly the removal of bilirubin, a byproduct of red blood cell breakdown. Its efficient production and secretion are essential for proper digestion and the overall health of the digestive system.

appendix
appendix
noun
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a sack of tissue that is attached to the large intestine and is surgically removed if infected

What is "appendix"?

The appendix is a small, finger-shaped pouch located at the junction of the small and large intestines in the human body. While its exact function remains unclear, it is believed to play a role in the immune system, as it contains lymphatic tissue. The appendix can become inflamed, resulting in a condition known as appendicitis, which requires surgical removal to prevent complications. Though it is considered a vestigial organ, the appendix may have some immunological significance and potential contributions to gut health.

intestine
intestine
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a long, continuous tube in the body through which the food coming from the stomach moves and is passed

What is "intestine"?

The intestine is a vital organ in the human body responsible for the digestion and absorption of food. It consists of two main parts: the small intestine and the large intestine. The small intestine is where most of the nutrient absorption occurs, while the large intestine primarily functions in water absorption and waste elimination. Together, they play a crucial role in the breakdown of food, extraction of nutrients, and elimination of waste products, contributing to overall digestive health and bodily function.

esophagus
noun
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a muscular tube that connects the throat to the stomach, allowing for the passage of food and liquids during digestion

What is "esophagus"?

The esophagus is a muscular tube connecting the throat to the stomach in the human body. It serves as a passage for food and liquids to travel from the mouth to the stomach during the process of swallowing. The walls of the esophagus contract in coordinated movements, known as peristalsis, to push the food downward. The esophagus also contains a sphincter at its lower end, called the lower esophageal sphincter, which helps prevent stomach acid and contents from flowing back into the esophagus. Its role in facilitating the safe and efficient transport of food makes the esophagus an essential component of the digestive system.

stomach
stomach
noun
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the body part inside our body where the food that we eat goes

What is "stomach"?

The stomach is a muscular organ located in the upper abdomen that plays a key role in the digestion of food. It receives food from the esophagus and breaks it down further using acid and enzymes, preparing it for further digestion and absorption in the intestines. The stomach also helps regulate the release of food into the small intestine and aids in the digestion of proteins.

liver
liver
noun
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a vital organ in the body that cleans the blood of harmful substances

What is "liver"?

The liver is a vital organ located in the upper right abdomen responsible for numerous essential functions in the body. It plays a key role in metabolism, filtering and detoxifying harmful substances from the blood, producing bile to aid in digestion, storing vitamins and minerals, and synthesizing proteins and clotting factors. The liver is also involved in regulating blood sugar levels, storing glycogen, and producing cholesterol. Its multifunctional nature makes it crucial for maintaining overall health and well-being.

colon
colon
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(anatomy) the main part of the large intestine, between the caecum to the rectum, where water is removed from solid waste

What is "colon"?

The colon, also known as the large intestine, is a vital part of the human digestive system. It is a long, hollow tube-like organ located in the abdominal cavity. The primary function of the colon is to absorb water, electrolytes, and nutrients from digested food and eliminate waste material from the body. It plays a crucial role in the final stages of digestion and the formation of feces. The colon consists of several segments, including the ascending colon, transverse colon, descending colon, and sigmoid colon, which collectively aid in the process of food digestion and waste elimination.

gut
gut
noun
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the lower part of digestive tract responsible for food absorption

What is "gut"?

The gut, also known as the gastrointestinal tract, is a long tube that starts from the mouth and extends all the way to the anus. It consists of several organs, including the esophagus, stomach, small intestine, and large intestine (colon). The gut is responsible for the digestion and absorption of food, as well as the elimination of waste products. It is lined with specialized cells that aid in the breakdown of food through the release of enzymes and the absorption of nutrients into the bloodstream. The gut also houses a complex community of microorganisms known as the gut microbiota, which play a crucial role in maintaining overall health and immune function.

gallbladder
gallbladder
noun
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a small, pear-shaped organ located beneath the liver in which the body stores a strong digestive fluid produced by the liver

What is "gallbladder"?

The gallbladder is a small organ located beneath the liver on the upper right side of the abdomen. Its main function is to store and concentrate bile, a digestive fluid produced by the liver. When we consume fatty foods, the gallbladder releases bile into the small intestine through the bile ducts. Bile helps in the digestion and absorption of fats by breaking them down into smaller molecules. The gallbladder plays a crucial role in the digestive process by assisting in the breakdown and absorption of dietary fats, aiding in the overall digestion and absorption of nutrients in the body.

pancreas
pancreas
noun
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a large gland in the body that produces insulin and glucagon and substances that help the body digest food

What is "pancreas"?

The pancreas is a gland located in the abdomen, behind the stomach. It serves both digestive and endocrine functions in the body. As a digestive gland, the pancreas produces enzymes that help break down carbohydrates, proteins, and fats in the small intestine. These enzymes aid in the digestion and absorption of nutrients from food. Additionally, the pancreas produces hormones, including insulin and glucagon, which regulate blood sugar levels and play a critical role in metabolism. The pancreas is an essential organ for maintaining proper digestion and glucose regulation in the body.

bladder
bladder
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a sac-like organ inside the body where urine is stored before being passed

What is "bladder"?

The bladder is a vital component of the urinary system in the human body. It is responsible for storing urine until it is ready to be eliminated. The walls of the bladder are made of smooth muscle tissue that can stretch and accommodate increasing volumes of urine. When the bladder is full, nerve signals are sent to the brain, triggering the sensation of needing to urinate. The bladder then contracts, allowing the urine to flow through the urethra and out of the body. Proper bladder function is essential for maintaining urinary continence and overall urinary health.

kidney
kidney
noun
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each of the two bean-shaped organs in the lower back of the body that separate wastes from the blood and make urine

What is "kidney"?

The kidney is a vital organ in the human body that plays a crucial role in maintaining overall health. They are responsible for filtering waste products and excess fluids from the blood, producing urine, and regulating various essential functions, such as electrolyte balance and blood pressure. The kidneys also participate in the production of hormones that help control red blood cell production and maintain bone health. Their bean-shaped structure, located in the back of the abdominal cavity, consists of millions of tiny filtering units called nephrons. Proper kidney function is essential for the body's overall homeostasis and well-being.

Grammatical Information:

urethra
noun
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(anatomy) the tube in most mammals that carries urine out of the body, which also carries sperm in males

What is "urethra"?

The urethra is a vital part of the urinary system in both males and females. In males, it serves a dual function, acting as a conduit for both urine and semen. In females, the urethra is shorter and solely responsible for the passage of urine. It plays a crucial role in the elimination of waste products from the body and is essential for maintaining proper urinary function and control.

pepsin
noun
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an enzyme produced in the stomach that helps in the digestion of proteins by breaking them down into smaller peptides

What is "pepsin"?

Pepsin is a digestive enzyme that plays a crucial role in the human body's digestion of proteins. It is produced in the stomach and acts to break down large protein molecules into smaller peptides. Pepsin works optimally in the acidic environment of the stomach, where it helps initiate the process of protein digestion, enabling the body to absorb essential amino acids for various biological functions.

saliva
noun
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the liquid produced in the mouth to make chewing and swallowing easier and to prepare food for digestion

What is "saliva"?

Saliva is a watery fluid produced by the salivary glands in the mouth that helps in the initial stages of digestion by moistening food, facilitating swallowing, and initiating the breakdown of carbohydrates through the action of enzymes like amylase. It also helps in maintaining oral health by washing away food particles and bacteria, and it plays a role in speech and taste perception.

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