Draw a labelled diagram of the sectional view of a human seminiferous tubule (six parts to be labelled)

1. Spermatozoa: It is the male sex cell that fertilises with ovu, to form a zygote.

2. Spermatid: It is a haploid male gamete formed by the division of secondary spermatocyte.

3. Secondary spermatocyte: These are haploid (n) cells formed by the meiotic division of primary spermatocytes.

4. Primary Spermatocyte: These are diploid (2n) cells which by meiotic division give rise to secondary spermatocytes.

5. Sertoli cell: These cells are present in the seminiferous tubules and helps in the nourishment of the spermatozoa.

6. Spermatogonium: It is an undifferentiated male germ cell it undergoes maturation to form mature spermatozoa.