Select the correct sequence for transport of sperm cells in male reproductive system.

Options

A. Testis `to`t Epididymis `to` Vasa efferentia `to` Vas deferens `to` Ejaculatory duct `to` Inguinal canal ` to` Urethra `to` Urethral meatus
B. testis `to` Epididymis `to` Vasa efferentia `to` Rete testis-Inguinal canal to Urethra
C. Seminiferous tubules `to` Rete testis `to` Vasa efferentia `to` Epididymis `to` Vas deferens `to` Ejaculatory duct `to` Urethra `to` Urethral meatus
D. Seminiferous tubules `to` Vasa efferentia `to` Epididymis `to` Inguinal canal `to` Urethra

Answer

To determine the correct sequence for the transport of sperm cells in the male reproductive system, we can break down the process step by step:

### Step-by-Step Solution:

1. **Spermatogenesis in Seminiferous Tubules**:
- Sperm cells are produced in the seminiferous tubules located within the testes. This process is known as spermatogenesis, where male germ cells (spermatogonia) undergo meiosis to form mature sperm.

2. **Transport to Rete Testis**:
- Once the sperm are formed, they are transported to the rete testis, a network of tubules that collects sperm from the seminiferous tubules.

3. **Movement through Vasa Efferentia**:
- From the rete testis, sperm move into the vasa efferentia (also known as efferent ductules), which are small ducts that carry sperm away from the testes.

4. **Storage in Epididymis**:
- The vasa efferentia lead to the epididymis, where sperm are stored and matured. The epididymis is a coiled tube that allows for the maturation and nourishment of sperm.

5. **Transport via Vas Deferens**:
- After storage in the epididymis, sperm are transported through the vas deferens, a muscular tube that carries sperm from the epididymis to the ejaculatory duct.

6. **Ejaculatory Duct Formation**:
- The vas deferens joins with the duct from the seminal vesicle to form the ejaculatory duct. This duct serves as a passage for sperm and seminal fluid.

7. **Urethra**:
- The ejaculatory duct then opens into the urethra, which serves as the final passage for sperm to exit the body. The urethra is also a common passage for urine.

### Correct Sequence:
The correct sequence for the transport of sperm cells is:
1. Seminiferous Tubules
2. Rete Testis
3. Vasa Efferentia
4. Epididymis
5. Vas Deferens
6. Ejaculatory Duct
7. Urethra