Reading Assignment: POHS Chapter 39 - Animal Reproduction; pp. 857-881.
Self Quiz: 1-10
Applying Concepts: 1 - 4
Lecture Outline Asexual reproduction advantages and disadvantages distribution modes budding regeneration parthenogenesis Sexual reproduction gametogenesis spermatogenesis testis spermatogonia primary spermatocytes secondary spermatocytes (plasmodia) spermatids sperm acrosome oogenesis ovary oogonium primary oocyte secondary oocyte and first polar body ootid and second polar body (bodies) ovum Mating dioecious vs. monoecious (hermaphroditic) simultaneous vs sequential hermaphroditism Fertilization external internal copulatory organs: penis, vagina/cloaca spermatophores Vertebrate reproductive systems "fish" amphibians amniotes oviparous viviparous - has evolved over 100 times among vertebrates lecithotrophic - embryos draw nutrients from yolk of ovum; ovoviviparity matrotrophic - embryos draw nutrients from mother Mammalian/Human reproductive system male reproductive system testes - within scrotum; spermatogenesis is heat sensitive seminiferous tubules Serotli cells Leydig cells epididymis ductus deferens urethra accessory glands seminal vesicles prostate bulbourethral glands penis emission vs ejaculation Female reproductive system ovaries uterus oviduct (uterine tubes) cervix endometrium vagina vulva labia majora and minora clitoris ovarium cycle follicle - primary oocyte and follicular cells ovulation corpus leuteum associated hormones: GnRh, FSH, LSH uterine cycle associated hormones: estrogen, progesterone Fertility control ? What population event occurred in October of 1999? behavioral methods barrier methods preventing ovulation preventing implantation abortion sterilization Overview of gestation implantation blastocytes placenta umbilical cord first trimester (embryo) second trimester (fetus) third trimester parturition
Topics not covered in lecture for which you will be responsible:
Hormonal control of male sexual function - p. 868 Four phases of human sexual response - pp. 872-3 Reproductive technologies and infertility - p. 876 STD - pp. 876-77