PSL300H1 Lecture Notes - Lecture 1: Sertoli Cell, Male Reproductive System, Seminiferous Tubule
Document Summary
Role of testis, epididymis, prostate, seminal vesicles. Role of lh, fsh, testosterone & dht. Textbook reading: silverthorn 7th ed 808-815, (6th ed. Defined by expression of anti-mullerian hormone in male fetus, blocking development of female organs. Gametes with 23 chromosomes produced by meiosis. In contrast to mitosis = normal cell division. Very different system in males and females. At birth, the process stops: what"s present in the child are primary oocytes with 4 chromosomes. Once the child go through puberty and reproduction active first meiosis. Polar body dies (don"t continue in the cycle) 2nd develop through the cycle but still has 2 chromosomes. Male: in the embryo, creation of sperm cell with two chromosome. Once reproductive system begins the end point will be 4 sperms with single copy of the dna. If the egg is fertilized primary oocyte divides , another polar body shed from oocytes. For female, meiosis provides single egg, for male, meiosis results in 4 sperms.
