Question

question 15 of 25
which best describes the blood flowing in an artery?
a. it moves toward the heart.
b. it is oxygen rich.
c. it is oxygen poor.
d. it contains no red blood cells.

Explanation:

Arteries (except pulmonary artery) carry oxygen - rich blood away from the heart. Option A is incorrect as veins (except pulmonary vein) carry blood towards the heart. Option C is wrong for most arteries (again, pulmonary artery is an exception but in general context). Option D is incorrect as blood in arteries contains red blood cells which carry oxygen.

Answer:

B. It is oxygen rich.