acrosomal cap

acrosomal cap

Medical dictionary. 2011.

Look at other dictionaries:

  • cap — 1. Any anatomic structure that resembles a c. or cover. 2. A protective covering for an incomplete tooth. 3. Colloquialism for restoration of the coronal part of a natural tooth by means of an artificial crown. 4. The nucleotide structure found… …   Medical dictionary

  • acrosomal vesicle — a membrane bounded vacuolelike structure containing the enlarging acrosomal granule, which undergoes collapse and spreads over the upper two thirds of the head of a spermatozoon to form the head cap …   Medical dictionary

  • head cap — the double layered caplike structure over the upper two thirds of the acrosome of a spermatozoon, consisting of the collapsed acrosomal vesicle …   Medical dictionary

  • Spermiogenesis — is the final stage of spermatogenesis which sees the maturation of spermatids into mature, motile spermatozoa.PhasesThe process of spermiogenesis is traditionally divided into four stages: the Golgi phase, the cap phase, the acrosomal phase, and… …   Wikipedia

  • Vesicle — In dermatology, a vesicle is a small blister, as on the skin. Vesicles also occur on the mucous membranes, such as the buccal mucosa (the lining of the mouth). Vesicles are less than .5 centimeters in diameter.In anatomy, a vesicle is any small… …   Medical dictionary

  • acrosome — A caplike organelle or saccule derived from the golgi that surrounds the anterior two thirds of the nucleus of a sperm cell. Within this cap are enzymes that are thought to facilitate entry of the sperm through the zona pellucida. [acro + G. soma …   Medical dictionary

  • acrosomin — A lipoglycoprotein complex present in the acrosomal cap …   Medical dictionary

  • ACRV1 — Acrosomal vesicle protein 1, also known as ACRV1, is a human gene.cite web | title = Entrez Gene: ACRV1 acrosomal vesicle protein 1| url = Cmd=ShowDetailView TermToSearch=56| accessdate = ] PBB… …   Wikipedia

  • Fertilisation — This article is about fertilisation in animals and plants. For fertilisation in humans specifically, see Human fertilization. For Soil improvement, see Fertiliser. Conceive redirects here. For the health magazine, see Conceive magazine. For… …   Wikipedia

  • Acrosome reaction — During fertilization, the acrosome reaction is the reaction which occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a cap like structure over the anterior half of the sperm s head.As the sperm approaches the zona… …   Wikipedia

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