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精子人体最小的细胞之一,全长仅为0.06毫米。成熟男性每次排出的精液中,每毫升里24万个至2亿个精子。在显微镜下观察新鲜的精液,可以看到千姿百态的精子。精子有圆头、大头、尖头、梨状头、双头及无定型头的,其中只有呈椭圆型、尾部完整无缺的精子才是正常的。具有Y型染色体的精子与卵细胞结合可以生女婴,如果将精子置于赛跑状态,Y型染色体精子速度较快,必然是捷足先登,这样就可把两种精子分离开来,通过人工授精注入母体一种精子,便可得到所希望的男胎或女始。但是精子本身要健康。影响精子健壮的因素有六项,即所谓精子六怕。
Sperm one of the smallest cells in the human body, the total length of only 0.06 mm. Mature male discharge of semen per milliliter 240,000 to 200 million sperm. Under the microscope to observe the fresh semen, you can see mixed sperm. Sperm round, big, pointed, pear-shaped head, double-headed and amorphous head, of which only the oval-shaped, intact tail sperm is normal. Y chromosome with sperm and egg cells can be born baby girl, if the sperm placed in racing state, Y-chromosome fast sperm, is bound to be pre-emptive, so you can separate the two sperm injected into the mother through artificial insemination A sperm, you can get the desired male fetus or female start. But sperm itself is healthy. There are six factors that affect sperm robustness, the so-called sperm six afraid.