Responds to Luteinising Hormone (LH) by producing testosterone., Type A Spermatogonia: Respond to Follicle Stimulating Hormone (FSH) by going through mitosis., In response to testosterone Spermatogonia differentiate to become primary spermatocyte., Primary spermatocytes undergo meiosis, Meiosis I is complete, Meiosis 2 begins (Secondary Spermatocytes are haploid), Meiosis 2 is complete (every spermatid is haploid AND has the appropriate amount of DNA), Spermatids mature, by developing tails and an acrosome., Structurally mature sperm cells, with no ability to use their tails for movement., Spermatozoa (immature sperm) are moved through the lumen to the epidydimis via muscular contraction of smooth muscle, fluid movement and cilia beating.

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