See Also: Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Head-to-Head - Poker(gambling)
Head to Head - General(gambling)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
medicine(encyclopedia)
medicine man(encyclopedia)
Medicine(medicine)
medicine man(dictionary)
medicine(dictionary)

head cap (medicine)


head cap -->
acrosomal cap


A collapsed membranous vesicle that covers the anterior part of the nucleus of the spermatozoon, derived from the acrosomal granule; the carbohydrate-rich substance of the cap is associated with hydrolytic enzymes that aid in sperm penetration of the zona pellucida of the ovum.

Synonym: head cap.