During the excitement phase of intercourse, what makes the human penis enlarge and become rigid?

A) blood
B) semen
C) bone
D) contracted muscles


Ans: A) blood

Anatomy & Physiology

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The pancreas is located primarily on the ______ side of the body, and it produces an _______ juice that is rich in a variety of enzymes

A. left, acidic B. left, alkaline C. right, acidic D. right, alkaline

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Which plexus is formed from the ventral rami of nerves L4 to S4?

A. Brachial B. Cervical C. Pelvic D. Sacral E. Lumbar

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What is the last branch off the aortic arch?

A. The brachiocephalic artery B. The coronary artery C. The left common carotid artery D. The left subclavian artery E. The right common carotid artery

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AIDS-related research received considerable attention during the:

A. 1950s. B. 1960s. C. 1970s. D. 1980s

Anatomy & Physiology