The acrosome is an organelle that develops over the anterior (front) half of the head in the spermatozoa (sperm cells) of humans, and many other animals...

process known as the acrosome reaction, which is the reaction that occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a membrane-bound...

spermatozoon approaches the egg, it undergoes the acrosome reaction in which the membrane surrounding the acrosome fuses with the plasma membrane of the sperm's...

copulation shortly after ovulation. Upon encountering the secondary oocyte, the acrosome of the sperm produces enzymes which allow it to burrow through the outer...

the ZP3 and is important for binding with the sperm and activating the acrosome reaction. ZP3 is sufficient though unnecessary for sperm/egg binding. Two...

sperm must undergo the final maturation step, activation, involving the acrosome reaction. Non-mammalian spermatozoa do not require this capacitation step...

one end, where the Golgi apparatus creates enzymes that will become the acrosome. At the other end, it develops a thickened midpiece, where the mitochondria...

species-specific fertilization; to prevent polyspermy, and enable the acrosome reaction for the successful adhesion and penetration by the sperm cell...

which encloses the ovum. Hyperactivation could then be followed by the acrosome reaction where the cap-like structure on the head of the cell releases...

fertilization to occur, sperm cells rely on hyaluronidase (an enzyme found in the acrosome of spermatozoa) to disperse the corona radiata from the zona pellucida...

the Passeriformes for having spermatozoa with a rounded head and a blunt acrosome. This species produces two or three broods per season, from early May to...

by the ACR gene. Acrosin is released from the acrosome of spermatozoa as a consequence of the acrosome reaction. It aids in the penetration of the Zona...

fertilizing it with the help of certain hydrolytic enzymes present in the acrosome. The fertilization usually occurs in the fallopian tubes, but can happen...

chromatin fibers, surrounded anteriorly by a thin, flattened sac called the acrosome, which contains enzymes used for penetrating the female egg. It also contains...

embryos that may be transferred to a maternal uterus. With this method, the acrosome reaction is skipped. There are several differences between classic IVF...

(sperm with round heads), the Golgi apparatus is not transformed into the acrosome that is needed for fertilization. The presence of abnormally-shaped sperm...

thickened mid-piece where the mitochondria become localised, and form an acrosome. Spermatid DNA also undergoes packaging, becoming highly condensed. The...

so that they can no longer bind spermatozoon. Acrosome reaction - The analogous reaction in the acrosome of the sperm Haley SA, Wessel GM. Sea urchin cortical...

fusion with the ovule. Studies in mice have shown that DHA is essential for acrosome reaction and a DHA deficiency results in abnormal sperm morphology, loss...

or farthest point acrocrany, acromegaly, acroosteolysis, acroposthia, acrosome -acusis hearing Greek ἀκουστικός (akoustikós), of or for hearing paracusis...

ability to fertilize the female gamete, this cell suffers capacitation and acrosome reaction in female reproductive tract. The signaling pathways best described...

The Golgi apparatus surrounds the now condensed nucleus, becoming the acrosome. Maturation then takes place under the influence of testosterone, which...

infertility. It is characterised by round-headed spermatozoa without acrosomes, an abnormal nuclear membrane and midpiece defects. Affected males therefore...

the glycoprotein in the zona pellucida most important for inducting the acrosome reaction of sperm cells at the beginning of fertilization. The zona pellucida...

[citation needed] In mammalian fertilization, hyaluronidase is released by the acrosome of the sperm cell after it has reached the oocyte, by digesting hyaluronan...

mobility of these mobile trains was also found to be influenced by premature acrosome reactions, altruistic acts performed by some spermatozoa for the benefit...

fail this test. This test evaluates the acrosome reaction of human spermatozoa. However, the incidence of acrosome reaction in freely swimming human sperm...

reported to have any effect on the acrosome reaction on its own, but it is able to block the progesterone-induced acrosome reaction. Moreover, veratridine...

function in sperm adhesion to the zona pellucida during exocytosis of the acrosome". Biochemical Journal. 375 (Pt 2): 477–488. doi:10.1042/BJ20030753. ISSN 0264-6021...

COPII-coated vesicles) and secretory vesicles (including synaptosome, acrosomes, melanosomes, and chromaffin granules). Different types of biological...