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primary male sex hormone, stimulates development of primary sexual characteristics and secondary sexual characteristics
secondary sexual characteristics
deeper voice, enlarged thyroid cartilage, high hair chest, legs, arm, facial hair. high muscle mass, high height (skeletal growth), baldness.
surrounded by a layer of cells (granulosa cells). primordial follicle. all primary oocytes enters meiosis I and stall. then birth of girl.
starts at puberty. 28 days, regulated by hormones. at beginning of each cycle a few primary oocytes continue to develop, usually only one finishes meiosis I. and becomes secondary oocyte and first polar body.
in mature follicle. stalls midway of meiosis II. contains zona pellucida, corona radiata which protect it. is released from mature follicle at ovulation.
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