HSCI 100 Chapter Notes -Corpus Luteum, Vas Deferens, Seminiferous Tubule

• School: Simon Fraser University
• Department: Health Sciences
• Course: HSCI 100
• Professor: Nienke Van Houten

Document Summary

Functions produces gametes transports gametes produces sex hormones nurtures & gives birth to offspring in females. Spermatogenesis process of making sperm in males from meiosis, all 4 haploid cells generate sperm continual process after puberty about 400 mil produced/day. Oogenesis process of making eggs in females during meiosis,1 egg & 2-3 polar bodies formed polar bodies hold discarded chromosomes and disintegrate all eggs (400k) produced by puberty. 1 egg per month released approx 400 in reproductive cycle. Scrotum sacs holding testes regulate temp of testes 37c too warm and kills sperm. Mediated by mechanical stimulation through autonomic nervous system (parasympathetic) release nitric oxide (no) a gas. Viagra blocks phophodiesterase that breaks down cgmp = prolongs. Oviduct ciliated tubes that conduct the egg/embryo toward uterus, usual site of fertilization: aka uterine/fallopian tube. Function: produce eggs (oogenesis) & produce hormones (estrogen /progesterone) contains many follicles containing immature egg (oocyte) puberty female has 300k-400k follicles, no more produced.