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as evidenced by light microscopey electron microscopy and in vitro fertilization
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∙ 14y ago
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One consequence of the acrosomal reaction is?
the fast block to polyspermy
Which of the following arrangements of events is in proper order of occurrence?
capacitation, acrosomal reaction, cleavage, implantation, decidual reaction
What is the acrosome reaction?
The acrosome reaction must be completed before the sperm can fuse with the secondary oocyte, during the process of fertilisation. It occurs when the sperm comes into contact with the corona radiata of the secondary oocyte. Initally, perforations will develop in the acrosome, and then there will be point fusions of the sperm plasma membrane and the outer acrosomal membrane. The acrosome reaction is associated with the release of enzymes which facilitate fertilisation. The passage of sperm through the corona radiata is dependent on hyaluronidase, an acrosomal membrane, as well as tubal mucosal enzymes. Flagella action of the sperm also helps penetration of the corona radiata. Other important acrosomal enzymes include esterases, and lysin which causes lysis of the zona pellucida.
What is sperm structure?
The headPlasma membraneOuter acrosomal membraneAcrosomeInner acrosomal membraneNucleusProximal centrioleThe NeckRest of the distal centrioleThe Mid pieceThick outer longitudinal fibersMitochondrionAxonemeThe Principal pieceRing fibersThe Endpiece
Do cows have balls?
Strictly speaking, no, because "cows" are female bovines. Bulls, which are male bovines, do have testicles. Steers are castrated bovines and therefore have had their testicles removed.
What do bovines do for human beings?
Bovines (cows, steer) provide milk and meat for human consumption.
Functions of enzymes in acrosomal cap?
helps in the penetration of the spermatozoon into the ovum during fertiliztaion.
Do cows and bulls have the same digestive system?
Cows are female bovines. Bulls are male bovines. Therefore they have the same digestive system!!
What causes swelling of the head in bovines?
encephalitis.
What is the function of the cortical reaction?
It prevents other sperm from binding to and entering the egg by modifying the zona pellucida. It forms a fertilization envelope
What do you call the unsexed cattle?
Cattle, or cattlebeasts, or bovines.
What do you call a boy who cares for bovines?
umm....a farmer.
