Zusammenfassung der Ressource
reproductive system
- How animals reproduce
- Asexual
- eg:sponges,cnidarians,flatworms,annelids,echinoderms
- Sexual
- Gonads:Testes and ovaries
- life history strategies
- oviparous
- ovovivparous
- viviparous
- Human male reproductive
- organs
- Testes produce sperm and male sex hormone
- epididymis :sites of maturation and storage of sperm
- vas deferens:conduct and store sperm
- seminal vesicles and prostate gland and bulbourethral glands:contribute fluid to semen
- urethra:conduct sperm and urine
- penis:organ of copulation
- production of sperm
- 1)spermatogonium(2n)
- 2)primary spermatocyte(2n)
- 3)secondary spermatocyte(n)
- 4)early spermatid(n)
- 5)late spermatid(n)
- 6)immature sperm(n)
- hormones
- GnRH
- LH
- FSH
- Tetosterone
- Human female reproductive
- ovaries
- uterus
- vagina
- hormones
- estrogens
- progesterone
- ovarian cycle
- 1)primary follicle contains primary oocyte
- 2)secondary follicle contains secondary oocyte
- 3)vasicular(graafian) follicle develops
- 4)ovulation:oocyte is released
- 5)corpus luteum develops
- 6)corpus luteum degenerates
- menstruation
- controls of human production
- morning-after pills
- contraceptive vaccines
- AID
- In vitro fertilization
- GIFT
- Surrogate mothers
- ICSI