Chapter 52 Key Terms

• p. 1163: ova (singular, ovum), sperm, spermatozoa (singular, spermatozoon), external fertilization, internal fertilization, oviparity, ovoviviparity, viviparity
  
• p. 1165: metamorphosis, penis, oviduct, piokilotherms, homeotherms
  
• p. 1166: parthenogenesis, protogyny, protandry, hermaphrodites, amniotic eggs, amnion, extraembryonic membrane, chorion, yolk sac, ovary ovulation, estrus, estrous cycle, menstrual cycles, induced ovulators
  
• p. 1167: monotremes, marsupials, placental mammals, uterus, placenta, testes (singular, testis), SRY
  
• p. 1168: seminiferous tubules, Leydig cells, testosterone (androgen), scrotum, male secondary sexual characteristics, accessory sex organs, inguinal canal, primary spermatocyte
  
• p. 1169: secondary spermatocyte, spermatids, germinal epithelium, Sertoli cells, spermatogenesis, acrosome, epididymis, vas deferens, seminal vesicles
  
• p. 1170: ejaculatory duct, prostate gland, semen, urethra, bulbourethral glands, corpora cavernosa, corpus spongiosum, ejaculation
  
• p. 1171: inhibin, ovarian follicles, granulosa cells, primary oocytes, estradiol (estrogen), menarche, female secondary sexual characteristics, progesterone, vagina, cervix
  
• p. 1172: endometrium, tertiary follicle (Graafian follicle), follicular phase, proliferative phase, secondary oocyte
  
• p. 1173: polar body, fimbriae zygote, blastocyst
  
• p. 1174: corpus luteum, luteal phase, secretory phase, luteolysin, menstruation, menstrual phase, human chorionic gonadotropin (HCG), proestrus, metestrus, diestrus
  
• p. 1176: coitus, excitement, plateau, orgasm, resolution, clitoris, labia majora, labia minora, emission
  
• p. 1177: pair bonding, birth control, contraception, rhythm method, coitus interruptus
  
• p. 1179: AIDS (acquired immune deficiency syndrome), human immunodeficiency virus (HIV)
  
• p. 1180: ELISA (enzyme linked immunosorbent assay)
  
• p. 1181: condom, cervical cap, diaphragm, douche, jellies, foams, birth control pills (oral contraceptives), sterilization, vasectomy, tubal ligation, hysterectomy
  
• p. 1182: intrauterine devices (IUDs), abortion, curette, RU 486