Spermiogenesis
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The spermatids are gradually
transforms into mature sperm or spermatozoa by a process known as
spermiogenesis.
These changes include:
- Loss of cytoplasm.
- Formation of acrosomes which covers half the nuclear
surface, derived from the golgi region of spermatid contain enzymes that
assist penetration of corona radiata and zona pellucida during
fertilization
- Condensation of nucleus
- Formation of neck, middle piece, and tail
- The mitochondria arranged in the middle piece as
mitochordial sheath
The time required for a
spermatogonium to become a mature spermatozoon is approximately74 days
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