Question

"What percentage of the total blood volume do arteries typically contain?"

A) 15%
B) 25%
C) 35%
D) 45%

2- Arterioles are the major site of blood flow in which part of the circulatory system?

A) Arteries
B) Veins
C) Capillaries
D) Heart

3- What are arterioles regulated by?

Answer 1

Arteries typically contain 15% of the total blood volume. Arterioles are the major site of blood flow in the circulatory system. Arterioles are regulated by vasoconstriction and vasodilation.

Step-by-step explanation:

Arteries typically contain around 15% of the total blood volume. They transport blood away from the heart and branch into smaller vessels called arterioles.

Arterioles are the major site of blood flow in the circulatory system. They distribute blood to capillary beds, which are the sites of exchange with the body tissues.

Arterioles are regulated by the process of vasoconstriction and vasodilation. These mechanisms vary the resistance and help distribute blood flow to the tissues.