Question
Biology Question on Blood
Refer to the given figure of T.S. of penis. How will penile function be altered if the blood supply to the B is impaired?
A
Erection will be able to occur, but ejaculation will not be possible
B
The urethra will become occluded
C
Erection will not occur
D
The erect penis will be unable to become flaccid
Answer
Erection will not occur
Explanation
Solution
The penis contains three cylindrical masses of erectile tissue - two dorsal corpora cavernosa (B) and one ventral corpus spongiosum (A). These bodies are surrounded by fibrous tissue (C). During sexual arousal, the three bundles of tissue in the penis become engorged with blood. If the blood supply to corpora cavernosa is impaired, the erection will not occur.