The glans penis is made up to

Options

A. corpus sponogiosum
B. corpus cavernosum
C. corpus spongiosum and corpus cavernosum
D. two corpora cavernosa and one corpus spongiosum.

Answer

### Step-by-Step Solution:

1. **Understanding the Glans Penis**:
- The glans penis is the bulbous structure located at the distal end of the penis in male mammals. It is sensitive and plays a crucial role in sexual arousal and pleasure.

2. **Anatomical Homology**:
- The glans penis is anatomically homologous to the clitoris in females, meaning they share a common developmental origin.

3. **Composition of the Glans Penis**:
- The glans penis is primarily made up of a type of tissue known as corpus spongiosum. This is a mass of spongy erectile tissue.

4. **Function of Corpus Spongiosum**:
- The corpus spongiosum surrounds the male urethra, which is the duct through which urine and semen are expelled from the body.

5. **Terminology**:
- In older texts, the corpus spongiosum is sometimes referred to as the corpus cavernosum urethra, indicating its relationship with the urethra.

6. **Final Answer**:
- Therefore, the glans penis is made up of corpus spongiosum, which is also known as corpus cavernosum in some contexts.