Which of the following events occurs in an erection?

A. vasoconstriction of arteries leading to erectile tissue of penis
B. engorgement of erectile tissue of penis with blood
C. dilation of venules leading from erectile tissue of penis
D. relaxation of internal sphincter of urinary bladder
E. decrease of blood flow to the penis


B

Anatomy & Physiology

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Teeth that are well suited to biting off food are the ________.

A. bicuspids B. premolars C. molars D. incisors

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An important buffer in body fluids is

A) NaCl. B) NaOH. C) HCl. D) NaHCO3. E) H2O.

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A fibrocartilage pad found between the bones within the knee joint is called a(n) ________

Fill in the blank(s) with the appropriate word(s).

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The body's longest cells are

A) muscle cells. B) connective tissue. C) epithelia. D) neurons. E) neuroglia.

Anatomy & Physiology