Question

Corpus spongiosum occurs in
a. Ovary
b. Penis
c. Testis
d. Uterine wall

Answer 1

Corpus Spongiosum is also called as Corpus cavernosum urethrae, and it is the mass of the spongy tissue found in the male reproductive system, and it is usually surrounded around the urethra.

Complete answer:
- It is the spongy tissue found in the penis of the males.
- It surrounds the male urethra behind and it expanded to form the urethral bulb.
- The urethra enters the bulb, nearer to the superior to the inferior surface.
- The portion of the Spongiosum in front of the bulb, lies in a groove, on the undersurface of the Conjoined corpus cavernosum in the penis.
- This corpus cavernosum is cylindrical in the shape and it is placed behind forward.
- This corpus cavernosa in the anterior end is present in the form of an obtuse cone and it is flattened at the end.
- The expansion is called glans, and this expansion is further in farther than the downward.
- A summit of the glans is a slit-like vertical opening, which is named as an external urethral orifice.
- The main function of the corpus spongiosum is to prevent the penis from pinching the urethra when it is erected.
- Prevention of pinching will help the urethra to make a viable channel for ejaculation.
- So in order to make the above functions, the corpus spongiosum becomes pliable, and the corpus cavernosa is engorged with blood vessels.

Hence, the correct answer is option (B).

Note: The fibrous covering of the corpus cavernosum is thinner, and it is white in color which is more elastic than that of the corpus cavernosum of the penis, and this fibrous envelope is named as Trabeculae of the corpus spongiosum of the penis.