BIOM 3200 Lecture Notes - Lecture 13: Scrotum, Arteriole, Louise Brown
20 Mar 2017
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Document Summary
Hypothalamic - anterior pituitary - testosterone - axis: sertoli and leydig cells in seminiferous tubules. 1st meiosis: dna duplicates then homologous chromes separated into 2 daughter cells these cells contain only one of each homologous pair of chromes, 23 chromes each, so are haploid. Immune system knows which cells are from your body so it doesnt attack those cells. Even tho sperm part of male body, but as they get to that hploid level the immune system doesnt reocgnize it as its own cells but as an antigen so the immune system will attack it. Are females necessary for the production of sperm. Cervical mucus provides nutritional needs of the sperm. In the form that the sperm is released from, they arent cxapable of pregnating the egg, need to be modi ed. Phagocytosis used so you develop a healthy child, make sure good sperm goes through. Head of sperm modi ed so it can penetrate the egg.
