BIOLOGY
JAMB 2013 - Question 24
Biology 2013 JAMB Past Questions - Question 24: The blood circulatory system of vertebrates consists of
Choose the most appropriate option for the gap .
A:
B:
C:
D:
Correct Answer
D
Explanation
The heart pumps oxvgenated. blood into the large starter called aorta. The aorta branches into several arteries which supply oxygenated blood to different parts of the body. These arteries later branch into smaller vessels called arterioles. The arterioles further subdivide into smallest or finest blood vessels called capillaries. These capillaries later unite to form venules which in turn unite to form the small veins. These small veins empty deoxygenated blood collected from the various tissues and organs of the body into the largest vein called vena cava. The vena cava empties it's contents into the heart and the circulation repeats itself.
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