The process of release of sperm from seminiferous tubule is known as :

Question

Accepted Answer

The process of release of sperm from the seminiferous tubule is known as "spermiation," which is why Option 4 is the correct answer. Here is a detailed explanation:

1. **Spermiation (Option 4)**: Spermiation is the specific process during which mature spermatozoa are released from the Sertoli cells into the lumen of the seminiferous tubules. This is the final step in the maturation of sperm cells within the testes, marking their transition from being attached to the Sertoli cells to being free and capable of moving towards the epididymis for further maturation and storage. This process is crucial for the eventual ejaculation of sperm and is distinct from other stages of sperm development.

2. **Ejaculation (Option 1)**: Ejaculation refers to the expulsion of semen from the male reproductive tract through the urethra to the outside of the body. It is a physiological process that occurs after spermiation and involves the propulsion of sperm from the epididymis, through the vas deferens, and out of the body. Therefore, ejaculation is not the process of releasing sperm from the seminiferous tubules, making this option incorrect in the context of the question.

3. **Spermatogenesis (Option 2)**: Spermatogenesis is the overall process of sperm cell development, starting from spermatogonial stem cells and culminating in the formation of mature spermatozoa. This process includes several stages: mitosis, meiosis, and spermiogenesis. While spermiation is a part of spermatogenesis, the term spermatogenesis encompasses the entire developmental process, not just the release of sperm from the seminiferous tubules. Hence, this option is incorrect for the specific question asked.

4. **Spermiogenesis (Option 3)**: Spermiogenesis is the stage of spermatogenesis where spermatids undergo morphological and structural changes to become mature spermatozoa. This involves the condensation of chromatin, formation of the acrosome, and development of the flagellum. However, spermiogenesis does not involve the release of sperm from the seminiferous tubules; it is the maturation phase within the cells. Therefore, this option is incorrect for the process described in the question.

In summary, spermiation is the precise term for the release of sperm from the seminiferous tubules, making Option 4 the correct answer.