which of the following statements correctly describes an ela

-which of the following statements correctly describes an elastic artery?check all that apply

a. contains an internal elastic lamina

b. contains multiple layers of smooth muscle

c. tunica media contains numerous elastic fibers

d. typical diameters are 1-2.5 cm in diameter

e. very thin with no smooth muscle cells

-elastic fibers allow for turbulent flow in elastic arteries (true/false)

Solution

Which of the following statements correctly describes an elastic artery?

Answer:

a. contains an internal elastic lamina

True

b. contains multiple layers of smooth muscle

True

c. tunica media contains numerous elastic fibers

True

d. typical diameters are 1-2.5 cm in diameter

True

e. very thin with no smooth muscle cells

False

elastic fibers allow for turbulent flow in elastic arteries

True

In its journey from the heart to the tissues, the blood passes through channels of six principal types: elastic arteries, muscular arteries, arterioles, capillaries, venules and veins. In this system, the arteries show a progressive diminution in diameter as they recede from the heart, from about 25 mm in the aorta to 0.3 mm in some arterioles. All arteries are comprised of three distinct layers, intima, media and adventitia.