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Sperm motility rate
Quick Definition: The definition of motility is the ability of an organism or fluid to move. Sperm motility refers to the movement and swimming of sperm. Poor sperm motility is also known as asthenozoospermia. Sperm are motile cells.
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Sperm motility is a major determinant of pregnancy outcome following intrauterine insemination.
PIP: Current literature dealing with sperm motility is reviewed. Laboratory observation has led to the hypothesis that the sperm tail moves when the microtubules, powered by adenosine triphosphate ATP , slide past one another, moving by means of their dynein arms, which are actual molecules of ATP activity. The clinical usefulness of determinations of various glycosidases in semen has been assessed in recent years. The neutral alpha-glycosiderase specific activity of sperm has been correlated with the percentage motility. It is postulated that an abnormal function of the epididymis may be related to decreased production of alpha-glucosidases.
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Semen is the yellow-white fluid that is released from the penis at the time of ejaculation. Semen is composed of seminal fluid and sperm. Sperm are the male reproductive cells that fertilize a female egg.
An abnormal sperm count may also indicate an underlying health condition. A normal sperm count ranges from 15 million sperm to more than million sperm per milliliter mL of semen. Anything less than 15 million sperm per milliliter, or 39 million sperm per ejaculate, is considered low.