The Reproductive System: How Gonads Go - CrashCourse Biology #34

Hank lets us in on the meaning of life, at least from a biological perspective - it's reproduction, which answers the essential question of all organisms: how do I make more of myself? So, sex, how does it work? Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse: http://www.twitter.com/TheCrashCourse Table of Contents 1) Gametes: Ova and Sperm 2:27 2) Sex Determination 4:59 3) Secondary Sexual Characteristics 6:48 4) Female Reproductive Structures 7:25 a) Uterus & Oviducts 7:40 b) Endometrium (Menstruation) 7:57 c) Cervix & Vagina 8:32 5) Male Reproductive Structures 8:45 a) Scrotum, Sminferous Tubules & Epididymas 8:59 b) Penis 9:37 c) Vas Deferens to Eurethra (Emission) 10:13 References http://www.sciencemag.org/content/281/5385/1979 http://www.medicinenet.com/miscarriage/article.htm http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1559814/) Campbell Biology, 9th ed. crash course, crashcourse, biology, science, reproductive system, reproduction, asexual, sexual, eukaryote, genome, offspring, sex cell, sex, animal, gamete, ovum, egg, ovule, sperm, hermaphrodite, genitals, male, female, behavior, production, storage, delivery, courtship, fertilize, gonads, organ, sex determining chromosome, nipple, estrogen, testosterone, puberty, secondary sex characteristics, breasts, human, ovary, fallopian tube, menstrual cycle, ovulation, uterus, cervix, vagina, testes, penis, erection, coitus, semen, emission, ejaculation, vas deferens, prostate gland Support CrashCourse on Patreon: https://www.patreon.com/crashcourse