After spermiogenesis, sperm head become embedded into the..........

Answer

**Step-by-Step Solution:**

1. **Understanding Spermiogenesis**: Spermiogenesis is the final stage of spermatogenesis, where spermatids undergo transformation to become mature spermatozoa.

2. **Structure of Sperm**: The sperm consists of three main parts: the head, midpiece, and tail. The head contains the nucleus, which carries the genetic material.

3. **Role of Sertoli Cells**: Sertoli cells are specialized cells located in the seminiferous tubules of the testes. They play a crucial role in supporting and nourishing developing sperm cells.

4. **Embedding of Sperm Head**: After spermiogenesis, the head of the sperm becomes embedded into the Sertoli cells. This embedding is essential for the proper development and maturation of the sperm.

5. **Nourishment Provided by Sertoli Cells**: Sertoli cells provide essential nutrients and blood products that are necessary for the growth and maturation of sperm cells.

6. **Release of Sperm**: Once the sperm have matured and are ready for release, they exit the seminiferous tubules in a process called spermiation.

**Final Answer**: After spermiogenesis, the sperm head becomes embedded into the Sertoli cells.

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