Anatomy C6-10

Front

Which of the following correctly describes the general function of blood vessels?
A. Only transporting oxygen
B. Transporting blood, exchanging gases/nutrients, removing wastes, and regulating pressure and temperature
C. Storing excess red blood cells
D. Producing clotting factors

Back

Transporting blood, exchanging gases/nutrients, removing wastes, and regulating pressure and temperature

Front

What is the correct order of blood flow through the vessels?
A. Arteries → capillaries → arterioles → veins → venules
B. Veins → arteries → venules → capillaries → arterioles
C. Arteries → arterioles → capillaries → venules → veins
D. Capillaries → arteries → arterioles → veins → venules

Back

Arteries → arterioles → capillaries → venules → veins

Front

The innermost layer of a blood vessel, which provides a smooth surface and minimizes friction, is called:
A. Tunica externa
B. Tunica intima
C. Tunica media
D. Lumen

Back

Tunica intima

Front

The hollow central cavity of a blood vessel through which blood flows is called:
A. Adventitia
B. Intima
C. Lumen
D. Endothelium

Back

Lumen

Front

Which layer of the blood vessel contains smooth muscle and elastic fibers, allowing vasoconstriction and vasodilation?
A. Tunica externa
B. Tunica intima
C. Tunica media
D. Endothelium

Back

Tunica media

Front

Which blood vessel layer anchors the vessel to surrounding tissues and is composed mainly of connective tissue?
A. Tunica media
B. Tunica externa
C. Tunica intima
D. Lumen

Back

Tunica externa

Front

Which of the following is a feature of arteries compared to veins?
A. Thinner walls, larger lumen
B. Thick walls, small lumen, strong elastic recoil
C. Low pressure, no elastic fibers
D. No smooth muscle present

Back

Thick walls, small lumen, strong elastic recoil

Front

Which type of artery is closest to the heart and functions as a pressure reservoir due to high elasticity?
A. Muscular arteries
B. Elastic arteries
C. Arterioles
D. Capillaries

Back

Elastic arteries

Front

Which arteries distribute blood to specific organs and body regions, and have more smooth muscle than elastic fibers in the tunica media?
A. Elastic arteries
B. Muscular arteries
C. Arterioles
D. Veins

Back

Muscular arteries

Front

Arterioles are often called "resistance vessels" because:
A. They store blood during rest
B. They have no smooth muscle
C. Their constriction and dilation regulate blood pressure and blood flow into capillaries
D. They lack elasticity

Back

Their constriction and dilation regulate blood pressure and blood flow into capillaries