BIOL 1410 Study Guide - Reproductive System, Neutrophil, Mitosis
26 Sep 2022
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Functions: perpetuates the species, maintains sexual characteristics, human life cycle: haploid gametes (sperm eggs) are produced through meiosis, which also scrambles the dna, creating unique cells. At fertilization, gametes fuse, forming a diploid zygote, and development occurs via mitosis: spermatogenesis: at puberty, the brain releases gonadotropin-releasing hormone (gnrh), triggering a complex set of responses ultimately ending in the production of sperm. Normal sperm development requires a slightly lower temperature; thus, testes descend from the body in the scrotum: oogenesis: a female is born with her total supply of eggs. Estrogen effect: simultaneously thickens the endometrium (lining of the uterus) for possible implantations after fertilization. The ovulated primary follicle leaves behind a corpus luteum, which prevents other oocytes from developing and being released (progesterone-estrogen effect) If fertilization and implantation occur, the fetus will temporarily keep the corpus luteum functioning by releasing human chorionic gonadoptropin, or hgg (detected in pregnancy test kits).
