BIO 208 Lecture Notes - Lecture 9: Vas Deferens, Folliculogenesis, Fallopian Tube
Document Summary
Reproductive organs that produce hormones and gametes. Reproductive cells that fuse to form an new individual. Sperm (spermatozoa) if produced by male: fertilization. Union of male and female gametes to form a new individual: zygote. Single cell created from the union of the gametes. Male reproductive system and sperm path: seminiferous tubule in testes (spermatogenes) interstitial cells produce androgens (testosterone) > epidiymis (still in scrotum) adjusts composition of seminal uid, sperm maturation and removal of cellular debris, abnormal sperm, etc. > vas deferens (storage and transport) seminal vesicle (fructose and it. Layered membranes: nucleus, mitochondrial spiral, tail ( agellum, lack of organelles (diffusion needed, capacitation. 4. too high of scrotal temperature (revealed by u. s. air force in wwii england)- scrotal re ex moves testes toward or from body. Occurs on a monthly cycle: oogonia complete mitotic division before birth, 3-7th month of fetal development. Primary oocytes undergo meiosis to prophase of meiosis i then stop.
