The feet of the sensory homunculus are located

A. medially on the precentral gyrus.
B. laterally on the postcentral gyrus.
C. laterally on the precentral gyrus.
D. medially on the postcentral gyrus.


Answer: D

Anatomy & Physiology

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The doublet that results with more frequent stimulation of the frog heart represents _______.

A) an extra contraction of the ventricles B) an extrasystole and an extra contraction of the atria C) an extrasystole and an extra contraction of the ventricles D) an extra contraction of the atria E) an extrasystole

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Which of the following is an origin for the internal oblique muscle?

A. Pubic crest B. Costal cartilage of upper three ribs C. Xiphoid process D. Iliac crest

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What is the function of the cremaster muscle?

A. It contracts to draw the testes close to the body for warmth. B. It becomes engorged with blood during an erection. C. It contributes to voluntary control of urination. D. It contracts during ejaculation to assist in the movement of sperm through the spermatic cord. E. In most mammals it serves to move the tail but has no purpose in humans.

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Scar tissue helps to hold an organ together but does not restore normal function of the damaged tissue.

Answer the following statement true (T) or false (F)

Anatomy & Physiology