Blood and Circulatory System

Front

plasma

Back

The liquid part of blood, which is made of mostly water

Front

hemoglobin

Back

A molecule in a red blood cell that carries oxygen and carbon dioxide

Front

platelet

Back

Cell fragments in the blood that help clot blood

Front

red blood cell

Back

A small living structure that carries oxygen to body parts

Front

white blood cell

Back

A small living structure that fights invaders to the body such as bacteria and viruses

Front

antigen

Back

Molecule that doesn’t belong in the body. Your body must fight antigens.

Front

antibody

Back

A protein that attaches to an antigen and makes it useless

Front

arteries

Back

Blood vessels that carry blood away from the heart.

Front

capillaries

Back

Blood vessels that connect the arteries and veins.

Front

immunity

Back

A body’s ability to resist a disease.