Dimensions of the human sperm




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20 Sep Dimensions of human ejaculated spermatozoa in Papanicolaou-stained seminal and swim-up smears obtained from the Integrated Semen.

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spermatozoon


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Description:Various staining techniques have been employed, but only a few have been recommended by the World Health Organization and are amenable to automated sperm morphometry analysis. A consent form was signed by each donor participating in the study. The human sperm is composed of a head and a tail, the tail being divisible into a neck, a middle piece, a principal piece, and an end piece; the head, mcm in length, is a broadly oval, flattened body containing the nucleus; the tail is about 55 mcm in length. Ideally, these different staining techniques should also be compared with fresh, unstained spermatozoa in order to evaluate the influence of fixation and staining on human spermatozoa. Similar defect-free spermatozoa are found attached to the zona pellucida after in vitro fertilisation IVF 7 , 8. This requires that categorization as 'normal' be as accurate as possible.

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Views: 1249 Date: 2018-04-02 Favorited: 80 favorites

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