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acrosome

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acrosome
acrosome Zool. (ˈækrəsəʊm) [ad. G. akrosoma (M. von Lenhossék 1898, in Archiv. Mikrosk. Anat. LI. 282), f. acro- + -some (cf. Gr. σῶµα body).] A cap-like structure forming the anterior part of the head of a spermatozoon. Hence acroˈsomal, acroˈsomic adjs.1899 J. H. McGregor in Jrnl. Morphology XV. S... Oxford English Dictionary
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Acrosome
In placental mammals the acrosome contains degradative enzymes (including hyaluronidase and acrosin). This shedding of the acrosome, or acrosome reaction, can be stimulated in vitro by substances a sperm cell may encounter naturally such as progesterone wikipedia.org
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Acrosome reaction
A few events precede the actual acrosome reaction. of the acrosome reaction itself. wikipedia.org
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acrosin
acrosin, n. Biochem. (ˈækrəʊsɪn) [f. acrosome n. + -in1.] A proteolytic enzyme found in the acrosome of mammalian spermatozoa, which is thought to facilitate penetration of the ovum at fertilization by digesting the outer protein coat of the ovum.1970 L. J. D. Zaneveld et al. in FEBS Lett. XI. 345 T... Oxford English Dictionary
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Acrosin
Acrosin is released from the acrosome of spermatozoa as a consequence of the acrosome reaction. It aids in the penetration of the Zona Pellucida. It is stored in the acrosome in its precursor form, proacrosin. Upon stimulus, the acrosome releases its contents onto the zona pellucida. wikipedia.org
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Acroplaxome
Many changes occur during this process: the DNA in nuclei becomes condensed; the acrosome develops as a structure close to the nucleus. The acrosome is derived from the Golgi apparatus and contains hydrolytic enzymes important for fusion of the spermatozoon with an egg cell. wikipedia.org
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Why do sperm have centrioles and do female eggs cells even have centrioles? I was just wondering why it is that sperm have centrioles underneath the acrosome, but that also prompted a thought as to whether eggs have t...
Oocytes do not have centrioles. During fertilization, the centrioles of the sperm become the centrioles of the zygote. Only one pair is needed, as there is only one cell (i.e. zygote) right after fertilization.
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Zona pellucida
This structure binds spermatozoa, and is required to initiate the acrosome reaction. They bind to capacitated spermatozoa and induce the acrosome reaction. wikipedia.org
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Can sperm cells penetrate the cell membrane of non-ovum cells? Sperm cells have tiny bags of enzymes on their tip (the acrosome) which allow them to penetrate the ovum. My question is whether or not the process that a...
If you want to read more, the Wikipedia page about the Acrosome reaction is pretty good.
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Peanut agglutinin
Identification of the outer acrosome membrane in sperm, indicating acrosome integrity. wikipedia.org
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Sperm acrosome reaction detection in intrauterine insemination
中信湘雅 生殖与遗传 专科医院 ， 长沙 4 1 0 0 7 8 ） [ 摘要] 目的： 探讨精子顶体反应（ A R ） 与宫腔 内人 工授 精 （ I U I ） 临 床妊 娠率 的 关系。
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Hyperactivation
Hyperactivation could then be followed by the acrosome reaction where the cap-like structure on the head of the cell releases the enzymes it contains. Notes See also Capacitation Acrosome reaction Andrology Germ cells Reproductive system Fertility Cell movement wikipedia.org
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SPACA3
SPACA3 (Sperm acrosome associated 3) هوَ بروتين يُشَفر بواسطة جين SPACA3 في الإنسان. wikipedia.org
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Globozoospermia
Infertility in this condition results from the sperm heads missing their acrosome. The lack of acrosome can be ascertained by either morphology staining or immunofluorescence. wikipedia.org
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Spermiogenesis
The head forms at one end, where the Golgi apparatus creates enzymes that will become the acrosome. Cap/acrosome phase The Golgi apparatus surrounds the condensed nucleus, becoming the acrosomal cap. wikipedia.org
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