Advanced Vocabulary for TOEFL - Human Anatomy

Here you will learn some English words about family and relationships, such as "saliva", "canine", "lobe", etc. that are needed for the TOEFL exam.

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Advanced Vocabulary for TOEFL
trachea [noun]

(anatomy) the membranous tube in the body that carries air from the throat to the bronchi

Ex: Inhaling smoke or irritants can cause inflammation of the trachea , leading to symptoms such as coughing and wheezing .

(anatomy) the act or process of breathing

Ex: Oxygen is transported from the lungs to the bloodstream during the process of respiration .
larynx [noun]

(anatomy) the hollow organ in the throat that contains the vocal cords and provides an air passage to the lungs

Ex: Inflammation of the larynx , known as laryngitis , can cause hoarseness or loss of voice .
saliva [noun]

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

Ex: The saliva test provided valuable information about the individual 's hormone levels and overall health .

any of the group of sensory cells that are mainly on the tongue, making one recognize different tastes

Ex:
incisor [noun]

(anatomy) any of the eight narrow-edged teeth at the front of the mouth that are used for biting

Ex: The orthodontist recommended braces to correct the misalignment of her incisors .
enamel [noun]

the hard white external layer that covers the crown of a tooth

Ex: Brushing and flossing regularly help to maintain enamel health and prevent dental problems .
nostril [noun]

either of the two external openings of the nose that one breathes through

Ex: She felt a tickle in her nostril as the cold air hit her face .
nasal [adjective]

(anatomy) connected with the nose

Ex:
phlegm [noun]

the thick mucus that is formed in the nasal and throat cavities, usually secreted in excessive amounts as a result of common cold

Ex: Smoking can exacerbate phlegm production and lead to chronic bronchitis and respiratory problems .
scalp [noun]

the skin under one's hair, covering the head

Ex: He felt a tingling sensation on his scalp as the hairstylist applied the dye .
sinus [noun]

an air-filled cavity, especially within the bones of the skull

Ex:
lobe [noun]

(anatomy) a rounded part of an organ, such as, lungs or brain that seems to be separate in some way from the rest

Ex:
cortex [noun]

(anatomy) the outer layer of the anterior part of the brain, called cerebrum, containing gray matter

Ex:
pupil [noun]

(anatomy) the small round black area in the center of the eye, through which light enters

Ex: The ophthalmologist observed an abnormality in the size and shape of the patient 's pupils .
iris [noun]

(anatomy) the round colored portion of the eye around the pupil and behind the cornea

Ex: The muscles within the iris contract or relax to adjust the size of the pupil in response to changes in light intensity .
retina [noun]

(anatomy) the sensory membrane at the back of the eye that transmits light signals to the brain through optic nerves

Ex: The macula is a small area near the center of the retina responsible for sharp , central vision .
cornea [noun]

(anatomy) the transparent layer that covers the outside of the eyeball

Ex: The cornea lacks blood vessels , obtaining nutrients and oxygen directly from tears and aqueous humor .
eardrum [noun]

a thin piece of skin in the middle ear that vibrates by sound waves and enables one to hear sounds, also known as tympanic membrane

Ex: The eardrum is crucial for transmitting sound vibrations from the outer ear to the middle ear ossicles .
trunk [noun]

the body of an animal or human, except the limbs and head

Ex: The trunk of the human body contains vital organs such as the heart , lungs , liver , and intestines , protected by layers of muscle and tissue .
abdomen [noun]

the lower part of the body below the chest that contains the digestive and reproductive organs

Ex: The surgeon made a precise incision in the lower abdomen to access the site of the appendicitis .
bile [noun]

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

Ex: Bile salts in bile help emulsify fats , breaking them down into smaller droplets that can be more easily digested by enzymes .
bladder [noun]

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

Ex: The bladder can hold up to 600 milliliters of urine .
gland [noun]

an organ in the body that produces certain chemical substances to be used in the body or to be discharged into the surroundings

Ex:
pancreas [noun]

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

Ex: Insulin and glucagon , hormones produced by the pancreas , help regulate blood sugar levels by controlling the uptake and release of glucose .
spleen [noun]

(anatomy) an abdominal organ that controls the quality of the blood cells

Ex: In some animals , such as dogs , the spleen can contract and release stored blood in times of need , such as during exercise or in response to injury .
colon [noun]

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

Ex: The colon is divided into several segments , including the ascending colon , transverse colon , descending colon , and sigmoid colon .
bowel [noun]

(usually plural) the tube in the body through which digested food passes from the stomach to the anus

Ex:
pelvis [noun]

(anatomy) the large round bone structure that the limbs and the spine are joined to, which also protects the abdominal organs

Ex:
womb [noun]

the part of the body of a woman or female mammal where the baby develops before birth

Ex: She felt a sense of awe as she watched the ultrasound images of her baby moving within her womb .
cervix [noun]

(anatomy) the narrow outer opening of the womb or uterus of a female

Ex: Pap smears are used to screen for cervical cancer by collecting cells from the surface of the cervix for analysis .
uterus [noun]

(anatomy) the organ in the female body where the fetus is conceived and grown before being born

Ex: Ultrasound imaging can show the position of the fetus inside the uterus .
ovary [noun]

either of the two organs in women or female animals that produce eggs for reproduction

Ex: She experienced sharp pains in her ovaries during her menstrual cycle , indicative of menstrual cramps .
urethra [noun]

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

Ex: Infections of the urethra , such as urinary tract infections ( UTIs ) or sexually transmitted infections ( STIs ) , can cause pain and discomfort during urination .
renal [adjective]

relating to the kidneys or their function

Ex: The doctor prescribed medication to improve renal blood flow .
intestinal [adjective]

relating to the intestines, which are part of the digestive system responsible for absorbing nutrients and removing waste from the body

Ex:
canine [noun]

(anatomy) any of the four pointed teeth that are between the incisors and premolars, used for tearing food

Ex: His canines are longer than average .
antibody [noun]

a blood protein produced to fight diseases or infections, or in response to foreign substances in the body

Ex: Antibody tests find antibodies in your blood , showing past infections or vaccinations .

the soft substance that fills the cavities of bones, which is either yellowish and consists of fat cells or reddish and makes blood cells

Ex: Yellow bone marrow , found in the hollow interior of long bones , stores fat and serves as a potential source of energy .