Structure of Human spermatozoan:
A human spermatozoan consists of four parts- head, neck, middle piece and tail.
Head contains chromosomal material (DNA) and a cap like structure called acrosoe which contains enzymes that help in dissolving egg membrane during fertilization.
Middle piece contains numerous mitochondria which provide energy for the movement of the *****.
4.Neck contains two centrioles, the proximal centriole which is necessary for first cleavage in zygote. The distal centriole is connected with tail.
- Tail – It consists of axial filament surrounded by the plasma membrane. Tail helps in the movement of *****.
