A process the sperm must undergo that enables fertilization.
endash; the process of activation of sperm, requires removal of surface glycoproteins and increased motility. The sperm now become capable of fertilizing an egg.
the functional changes that sperm undergo in the female reproductive tract; these changes allow them to fertilize a secondary oocyte
Changes in the sperm that prepare it for fertilization.
The process by which sperm are prepared for fertilization as they pass through the woman's reproductive tract (in vivo capacitation); sperm may also be capacitated in the laboratory (in vitro capacitation).
An invisible change mature sperm (spermatozoa) undergo to acquire accelerated movement and the ability to undergo the acrosome reaction. Brought about naturally when sperm swim up through the uterus and fallopian tubes, or brought about in the laboratory by spinning and washing the sperm through a series of solutions (in preparation for assisted conception).
The activation process that must occur before a spermatozoon can successfully fertilize an oocyte; occurs in the vagina after ejaculation.
The series of physiologic and biochemical events a sperm cell goes through to become capable of penetrating and fertilizing an oocyte when coming into contact with certain fluids in the uterus and fallopian tubes.
Removal of seminal fluid after sperm have been deposited in female genital tract. Sperm motility is enhanced and becomes whip-like; there is some redistribution of membrane proteins.
Removal of the plasma membrane overlying the spermatozoa's acrosomal area with the loss of seminal plasma proteins and the glycoprotein coat. If the glycoprotein coat is not removed, the sperm will not be able to penetrate the ovum.
the process of preparing sperm by artificial means so that their chances of fertilizing an egg are enhanced.
A process that occurs in sperm, which gives them the ability to penetrate and fertilise an ovum, as they pass through the female genital tract. This can also be mimicked in a culture medium when assisted techniques of reproduction are taking place.
cah-PASS-eh-TAY-shun Activation of sperm cells in the human female reproductive tract. 217
A change in sperm that helps it to penetrate an egg. This change occurs after ejaculation while the sperm is in the female reproductive tract. close window
The process by which sperm are altered ( usually during their passage through the female reproductive tract ) that gives them the capacity to penetrate and fertilize the ovum.
The alteration of sperm during the passage through the female reproductive tract that gives them the capacity to penetrate and fertilize the ovum.
A change in the sperm cell, causing hyperactivity and faster swimming, that enables the acrosome reaction and penetration of the egg. It takes place after the sperm has passed through the cervical mucus of the female reproductive tract or when prepared for insemination in the laboratory.
the process by which sperm become capable of fertilizing an egg
The process of breaking down the sperm's outer layer, rendering it able to fertilize an ovum.
A process the sperm must undergo to allow fertilization.
A process that sperm undergo as they travel through the woman's reproductive tract. Capacitation enables the sperm to penetrate the egg.