Sertoli cells are involved in the nutrition of sperms. These cells are found in the seminiferous tubules of the testes and play a crucial role in the development and maturation of sperm cells.

Function of Sertoli Cells:

1. Spermatogenesis:
Sertoli cells provide the necessary environment for the development and maturation of sperm cells. They provide structural and metabolic support to the developing sperm cells.

2. Secretion of hormones:
Sertoli cells secrete various hormones such as anti-Mullerian hormone and inhibin which regulate the development of male reproductive organs and control the levels of follicle-stimulating hormone (FSH) in the body.

3. Nutrient support:
Sertoli cells provide nutrients such as glucose, amino acids, and lipids to the developing sperm cells. They also remove metabolic waste products from the seminiferous tubules.

4. Blood-testis barrier:
Sertoli cells form a blood-testis barrier which prevents the entry of harmful substances from the blood into the seminiferous tubules.

5. Phagocytosis:
Sertoli cells engulf and remove excess cytoplasm and residual bodies during the process of spermatogenesis.

6. Androgen binding:
Sertoli cells have androgen receptors and bind to testosterone secreted by Leydig cells. This binding is necessary for the development and maturation of sperm cells.

Conclusion:
In conclusion, Sertoli cells play an important role in the nutrition, growth, and development of sperm cells. They provide structural and metabolic support to the developing sperm cells and ensure their proper maturation.