Blood vessels

Human blood vessels are

• artries, capillaries, and atria

• ventricles, atria and pulmonary veins

• capillaries, artries, and veins

• veins, artries, and aorta

Which type of blood vessel carries blood away from the heart?

• artery

• vein

• capillary

Which diagram represents an artery?

• diagram A

• diagram B

• diagram C

Which type of blood vessel carries blood to the heart?

• artery

• vein

• capillary

Which diagram represents a vein?

• diagram A

• diagram B

• diagram C

Which type of blood vessel allows substances to enter and leave the blood?

• artery

• vein

• capillary

Which diagram represents a capillary?

• diagram A

• diagram B

• diagram C

A vein has . . .

• a thick wall that contains muscle tissue and elastic tissue.

• a thin wall that contains some muscle tissue.

• a thin wall that is one cell thick.

A capillary has . . .

• a thick wall that contains muscle tissue and elastic tissue.

• a thin wall that contains some muscle tissue.

• a thin wall that is one cell thick.

An artery has . . .

• a thick wall that contains muscle tissue and elastic tissue.

• a thin wall that contains some muscle tissue.

• a thin wall that is one cell thick.