Last modified on 12 September 2012, at 20:55

Wikijunior:Human Body/Glossary


aerobic (adjective) – using or needing oxygen or air, such as aerobic exercise that makes you breathe heavily

aorta (noun) – the largest artery that carries oxygenated blood from heart to all parts of the body

aqueous (adjective) – of or related to water

artery (noun) – a blood vessel or tube in the body that carries blood away from the heart to other parts of the body

asthma (noun) – an illness that causes wheezing and difficulty in breathing due to blocked airways

atrium (noun) – a chamber of the heart that take blood into the heart from the veins

bloodstream (noun) – the flow of blood throughout the body

blood vessel (noun) – a tube that carries blood inside the body

capillary (noun) – a very small blood vessel or tube in the body that goes between arteries and veins, carrying blood and allowing the exchange of oxygen, carbon dioxide, water, nutrients, and waste

cardiac (adjective) – or related to the heart

cavity (noun) – a space inside the body, such as the space the heart and lungs are in

cell (noun) – the smallest part of a living thing that can be seen only with a microscope

cellular respiration (noun) - the process where cells use oxygen to help generate their energy

cholesterol (noun) – a naturally occurring chemical in the body's bloodstream that can be good or bad; too much of the bad kind can be unhealthy for the body

circulatory (adjective) – of or related to the system of the human body that includes the heart, arteries, veins, capillaries and blood and that carries oxygen and food to the cells through arteries and then carries away wastes

digestion (noun) – changing food into chemicals like sugar and protein that are small enough to get into the cells where they can be used for energy and growth

disease (noun) – sickness; illness

esophagus (noun) – a tube in the body that is inside the neck and goes from the throat to the stomach, carrying food that is swallowed

exercise (noun) – physical activity done to keep the body healthy, such as running or lifting weights

exhale (verb) – to breathe out; to blow out a breath of air

expel (verb) – to get rid of

germ (noun) – tiny living things, such as bacteria, that grow very fast, duplicating themselves over and over until there are millions or billions of cells, and if harmful, can cause infections

haemoglobin (noun) – a red iron-containing protein that occurs in the body's red blood cells and carries oxygen to all of the body's other cells

immune (adjective) – of or related to the system of the body that protects the body from infection and includes white blood cells, other chemicals in the blood, lymph nodes, and other organs

inhale (verb) – to breathe in; to take in a breath of air

liver (noun) – a major body organ that stores sugars for release when needed, makes bile to aid in digestion of fats, makes urea from protein wastes, and acts as a filter for the blood

lobe (noun) – a rounded section of a body part, such as an ear lobe, lobes of lung, or lobes of the liver

medication (noun) – drugs or pills, often given by a doctor, to make the body healthy

muscle (noun) – a type of tissue in the body that is attached to bones and that allow motion

nutrient (noun) – a source of nourishment; something that feeds living things and is necessary for life

organ (noun) – a distinct part of the human body that does a specific job, such as the heart, lungs, and kidneys

oxygen (noun) – an element that is found in air and water and that humans need to breathe in order to live

pancreas (noun) – a body organ that is part of the digestive and endocrine systems and that makes a juice which goes into the small intestine to help digest carbohydrates, proteins and fats and makes insulin

plasma (noun) – the liquid part of blood, made up of water and dissolved proteins

pulmonary (adjective) – of or related to the lungs; of or related to the system of the body that gets oxygen to the blood stream and removes carbon dioxide from the blood using the windpipe, bronchial tubes, and lungs

saliva (noun) – spit; the watery liquid found in the mouth

system (noun) – a group of body parts that work together

vein (noun) – a blood vessel or tube in the body that carries blood away from various parts of the body back to the heart

ventricle (noun) – a chamber of the heart that pumps blood from the heart into the arteries to be taken to various parts of the body

waste (noun) – the part of food that the human body can't use

yogurt (noun) – a soft, pudding-like food made from milk that contains live bacteria that can help digestion