Rat sperm structure


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Mouse sperm acquire a new structure on the apical hook during epididymal maturation

The acrosome cap sits on top of the nucleus in the anterior-dorsal part of the head and contains numerous digestive enzymes that facilitate the passage of the sperm through the cumulus cell layer and the zona pellucida during fertilization. Some authors question the utility or physiologic basis of this pattern of classification. Cervix Each uterine horn has its own cervix. A rotation of the nucleus causes a repositioning of the acrosomal vesicle to occur. An antibody against acrosin, a soluble content of the acrosome, 23 produced a similar staining pattern of the acrosome Figure 1c. Spermatozoa production in mammals[ edit ] Main article: This lock-and-key type mechanism is species-specific and prevents the sperm and egg of different species from fusing.
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Sperm Morphology

Spermatozoa production in mammals[ edit ] Main article: BJU Int, 83 Suppl. The sperm plasma membrane also undergoes changes in surface charge as well as lipid content and distribution. Just as they become hypermotile, fibrinolysin from the prostate dissolves the clot, allowing the sperm to progress optimally.
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Rat sperm structure
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Rat sperm structure
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3.3 Spermatogenesis

Rat sperm structure



Description: Spermatozoa production in mammals[ edit ] Main article: This secretion serves to clear the urethra of urine and to lubricate it and the vagina. These pheromones produced by the female preputial glands are useful for attracting the male. The cytoplasm cell components that are no longer needed are discarded and phagocytized by Sertoli's cells. The plasma membrane wraps the surface of the head and is subdivided into various regional domains that overlay different organelles and structures and have distinct protein and lipid components.

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