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Any of the tiny air cells of the lungs where oxygen (0)and carbon dioxide (C0) are exchanged
Alveolus
organic substances. Necessary for the normal metabolic functioning of the body
Vitamins
inorganic substances used to make certain body structures and substances. They are also needed for normal nerve and muscle function
Minerals
a saclike muscular organ in vertebrate animals that stores and breaks down ingested food
Stomach
excretes water, salts, and small amounts of nitrogen wastes and other substances in urine
Kidneys
One of the two arteries that carry blood directly to the heart cells
Coronary artery
A tiny blood vessel that allows gas and wastes to move between the blood and the cells of the body
Capillary
A collection of organs that carry out major body functions
Organ system
They system by which ingested food is acted upon by physical and chemical means to provide the body with absorbable nutrients
Digestive system
Located after the stomach in the digestive tract
Small intestines
The colon absorbs mineral ions and water from waste
large intestines
Enzyme produced in saliva that begins to breakdown carbohydrates while in the mouth
Amylases
Connects the mouth to the stomach and no digestion takes place here
Esophagus
The damage and loss of use of an area of the heart muscle
Heartattack
A chamber of the heart that receives blood that is returning from the body or the lungs
Atrium
A disc-shaped cell that has no nucleus, that contains hemoglobin, and that carries oxygen in the circulatory system
Red blood cell
The system by which oxygen is taken into the body and an exchange of oxygen and carbon dioxide takes place
Respiratory system
A sudden attack of weakness or paralysis that happens when blood flow to an area of the brain is blocked
Stroke
regulates amount of water and salts contained in the blood
kidneys
digestive enzyme produced by the stomach that breaks down proteins
Pepsin
Pulmonary circulation loop carries blood to the
lungs
Substance required by the body for energy, growth, repair and maintenance
Nutrient
One of the two large muscular chambers that pump blood out of the heart
Ventricle
Mouth, esophagus, stomach, small intestines, large intestines
Path of food
releases bile, which breaks down fats & promotes the absorption of fatty acids at the fat-soluble vitamins
liver
Group of organs that rids the body of toxic chemicals, excess water, salts, & carbon dioxide, etc. while maintaining osmotic and pH balance
Excretory system
excretes nitrogen wastes, salts, and water and other substances in sweat
Skin
A type of cell in the blood that destroys bacteria, viruses, and harmful proteins and that helps the body develop immunities
White blood cell
Functional unit of the kidney, in which waste products
filtered from the blood and urine is produced
Nephron
One of two large veins that carry blood from the body to the heart
Vena cava
Lungs, kidneys, skin
Organs of excretion
A set of organs that move blood through the body; includes the heart, arteries, veins and capillaries
Circulatory system
Wormlike protrusions in the small intestine where they serve in absorbing nutrients
Villi
excretes carbon dioxide and water vapor in exhaled air
Lungs
Systemic circulation loop carries blood to the
Body
A blood vessel that carries blood away from the heart to the body’s organs
Artery
The main artery in the body; it carries blood from the left ventricle of the heart to the rest of the body
Aorta