Physiology 2130 Lecture Notes - Lecture 11: Seminiferous Tubule, Granulosa Cell, Folliculogenesis
17 Nov 2017
School
Department
Course
Professor
Document Summary
Male reproductive system: function: to produce hormones & sperm, not essential in maintaining homeostasis, you can survive without your reproductive system it is only for offspring. Spermatocytes (23 chromosomes) spermatozoa2 (most mature: testosterone, testosterone levels are tightly regulated by the hypothalamic-anterior pituitary, gonadotropin-releasing hormone (gnrh) controls the release of luteinizing hormone (lh) and follicle stimulating hormone (fsh) which control testosterone production. Lh & fsh are released together after gnrh. Lh release stimulates leydig cells to produce testosterone: fsh release stimulates sertoli cells - necessary for spermatogenesis. Semen composition: seminal vesicles 60% semen volume, fructose, clotting proteins (alkaline, prostate 30% semen volume, citric acid, enzymes (slightly acidic, bulbourethral gland minor contributor, mainly mucus. Fe(cid:373)ales: pro(cid:272)esses o(cid:272)(cid:272)urri(cid:374)g (cid:271)efore (cid:271)irth to produ(cid:272)e oogo(cid:374)ias vs. Support cells surround oocytes during oogenesis acting as a support system: follicle = oocyte + support cells. Primordial follicle oocyte + single layer of granulosa cells.
