Question

question i
select all of the true statements regarding arteries.
select all that
apply
arteries transport blood away from the heart to the capillaries
the lumen of all arteries contains oxygen - rich blood
the thin tunica intima of arteries permits exchange of substances
between blood and body tissues.
smooth muscle in the tunica media enables arteries to change
vessel diameter.

Explanation:

• Arteries transport blood away from the heart. Capillaries are the site of exchange, and arteries lead to them. So, "Arteries transport blood away from the heart to the capillaries" is correct.
• Pulmonary arteries carry de - oxygenated blood. So, "The lumen of all arteries contains oxygen - rich blood" is incorrect.
• The thin tunica intima is not the main layer for substance exchange. Capillaries (with their single - celled endothelium) are for substance exchange. So, "The thin tunica intima of arteries permits exchange of substances between blood and body tissues" is incorrect.
• The tunica media has smooth muscle. Contraction/relaxation of this smooth muscle changes the vessel diameter. So, "Smooth muscle in the tunica media enables arteries to change vessel diameter" is correct.

Answer:

Arteries transport blood away from the heart to the capillaries, Smooth muscle in the tunica media enables arteries to change vessel diameter.