Question

question 2 of 10
what is the function of the valves in veins in the legs?
a. they prevent blood from moving up toward the head.
b. they prevent blood from moving down toward the feet.
c. more blood moves through veins.
d. more blood moves through arteries.

Explanation:

Valves in leg veins prevent blood from flowing backward due to gravity, ensuring blood moves towards the heart and not down towards the feet.

Answer:

C. More blood moves through veins.