Animal Reproductive Systems

Asexual reproduction Fission Budding (Wikipedia)

fragmentation parthenogenesis

gametes

spermatogenesis oogenesis

Simultaneous hermaphrodites Sequential hermaphrodites (this species starts as male)

In water eggsin mom (shark)

On land resistant eggsin mom

Parental care

Male ZZ Female ZW

Shared opening Female chicken

Human male anatomy

Human female anatomy

Bartholin’s glands

Human breast

External Male & female development

Internal male and female development

excitement plateau orgasm Human sexual response Female orgasm brain scan IgNobel: Willibrord Weijmar Schultz, Pek van Andel, and Eduard Mooyaart of Groningen, The Netherlands, and Ida Sabelis of Amsterdam, for their illuminating report, "Magnetic Resonance Imaging of Male and Female Genitals During Coitus and Female Sexual Arousal." [Published in British Medical Journal, vol. 319, 1999, pp

Estrogen Progesterone Testosterone ABP ovary hypothalamus 3 levels

Male

Female FSH = follicale stimulating hormone LH = luteinizing hormone

Female Positive feedback

Female

~7th day

Gastrulation (Fig 51-15)

10 wk Fetus (after 2 months)

Birth = parturition

Assistive technologies (IVF)

NOVA Online Life's Greatest Miracle 1. Passing on Your DNA5. The Embryo Takes Shape 2. The Egg's Journey 6. Messages in the Genes 3. The Sperm's Journey7. Feeding the Growing Fetus 4. The First Two Weeks8. The Third Trimester