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sperm |
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| navigate by keyword : biology birth care cell cells concept conception count dna egg female feminine fertility fertilization genetic health human illustration infertility insemination ivf life low male medical medicine microscopic pregnancy pregnant render reproduction research science seed semen sex sperm spermatozoa swim win winner |
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| The mammalian sperm cell consists of a head, a midpiece and a tail. The head contains the nucleus with densely coiled chromatin fibres, surrounded anteriorly by an acrosome, which contains enzymes used for penetrating the female egg. The midpiece has a central filamentous core with many mitochondria spiralled around it, used for ATP production for the journey through the female cervix, uterus and uterine tubes. The tail or flagellum executes the lashing movements that propel the spermatocyte. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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