Question

In both females and males, the perineum is circumscribed __________ by the pubic symphysis, __________ by the ischial tuberosities, and _________ by the coccyx.

Options:
A) posteriorly, superiorly, inferiorly
B) inferiorly, laterally, posteriorly
C) medially, inferiorly, anteriorly
D) anteriorly, laterally, posteriorly

Answer 1

The perineum in both males and females is bound anteriorly by the pubic symphysis, laterally by the ischial tuberosities, and posteriorly by the coccyx, matching option D.

Step-by-step explanation:

In both females and males, the perineum is circumscribed anteriorly by the pubic symphysis, laterally by the ischial tuberosities, and posteriorly by the coccyx.

This corresponds to option D: anteriorly by the pubic symphysis, laterally by the ischial tuberosities, and posteriorly by the coccyx. The perineum is a diamond-shaped region that is also divided into the urogenital triangle anteriorly and the a-n-a-l triangle posteriorly. It contains both superficial and deep muscles that are significant in reproductive and excretory functions. Females have muscles such as the compressor urethrae and the sphincter urethrovaginalis, while males have the deep transverse perineal muscle