Which of the Following is Not True of the Corpus

Question

Which of the following is not true of the corpus cavernosum?
A) It is erectile tissue.
B) It surrounds the urethra.
C) There are two columns of corpus cavernosum in the penis.
D) All of the above are true of the corpus cavernosum.

Accepted Answer

The corpus cavernosum is erectile tissue that fills with blood during sexual arousal, causing an erection. There are two columns of corpus cavernosum in the penis. However, it does not surround the urethra; instead, the urethra runs through the center of the corpus spongiosum, another erectile tissue in the penis. Therefore, option B is not true of the corpus cavernosum.