Human Body Unit 6 Part 2 vocabulary

Front

arteries

Back

strong vessels that carry blood away from the heart to the body

Front

veins

Back

blood vessels carrying blood to the heart

Front

hemoglobin

Back

a purple-red molecule in red blood cells that is responsible for carrying oxygen

Front

exhalation

Back

breathing out

Front

inhalation

Back

breathing in

Front

digestive enzyme

Back

fluids produced by digestive glands which contain substances that break down food

Front

villi

Back

finger-like projections on the lining of the small intestine which absorb digested food

Front

excretion

Back

removal of waste substances from the body

Front

bacteria

Back

single-celled organisms that don't have a nucleus, many of which cause diseases

Front

DNA

Back

a substance found in cell nuclei that forms the genetic material of all living things