Which statement(s) is/are correct? Check all that apply.

A) Arteries have a thick muscular layer.
B) Veins can control blood pressure.
C) Capillaries are the site of oxygen and nutrient exchange.
D) Veins have valves to assist with one-way blood flow.
E) Capillaries contain most of the blood volume.

A) Arteries have a thick muscular layer to withstand the high pressure of blood being pumped from the heart.
C) Capillaries are the site of oxygen and nutrient exchange, allowing for the diffusion of these substances from the blood to surrounding tissues.
D) Veins have valves to prevent backflow of blood and assist with one-way blood flow.
B) Veins cannot control blood pressure as they are unable to constrict or dilate like arteries can.
E) Capillaries actually have the smallest blood volume of the three types of blood vessels.