Veterinary Andrology and Reproductive Techniques

ACROSOMAL PHASE

• Spermatid nucleus begins to elongate (A).
• Acrosome covers the majority of the anterior nucleus (B).
• A unique system of microtubules known as manchette extends from posterior nucleus. Portions of manchette attach to the region of the nucleus just posterior to the acrosome.
• Some of the microtubules of the manchette will become the post nuclear cap.
• During the acrosome phase, spermatid become deeply embedded in sertoli cells with their tails protruding towards the lumen of the seminiferous tubule .

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