Bio Chap 7

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  1. Castration
    The removal of the gonads (testes or ovaries)
  2. A class of hormones responsible for a number of male characteristics
  3. Testosterone
    The major sex hormone in males
  4. A period when the female is ovulating, sex hormone levels are high and the animal is said to be in heat
  5. A class of hormones responsible for a number of female characteristics
  6. Involved in sexual behavior in both sexes as well as aggression and emotion
    Medial amygdala
  7. Quick return to sexual arousal when a new partner is introduced
    Coolidge effect
  8. The area in the hypothalamus involved in male and femal sexual behavior
    Medial preoptic area (MPOA)
  9. A region of the MPOA that is five times larger in males and is involved in male sexual performance
    Sexual-Dimorphic Nucleus (SDN)
  10. A group of genes that contributes to immune system functioning, and affect odors that are avoided in related individuals
    Major Histocompatibility Complex (MHC)
  11. Bioactive chemicals released by individuals which change the behavior or physiology of others, such as those involved in sexual attraction in moths and cats
  12. A cluster of receptors in the nasal cavity, detect pheromones. It is present in most mammals
    Vomeronasal organ (VNO)
  13. A neuropeptide that facilitates bonding and milk ejection in animals
  14. Sex
    The set of charactersitics that seperate organisms into male and female
  15. Gender
    The set of behavioral characteristics that correspond to sex
  16. Mullerian inhibiting hormone
    Determines the sex of the fetus by defeminizing the fetus
  17. A derivative of testosterone that masculinizes the external genitals
  18. Occurs during sensitive periods of development affecting structures permanently
    Organizing effects
  19. Occurs at any time and can fluctuate, but are reversible if the hormone is removed
    Activating effects
  20. A genetic mutation that results in absence of androgen receptors, with feminine appearance and external genitals
    Androgen insensitivity
  21. An enzyme defect in which the adrenal glands produce too much androgen, masculinity of the body
    Congenital adrenal hyperplasia (CAH)
  22. An area in the brain that is smaller in gay men than in heterosexual men
    Third interstital nucleus of the anterior hypothalamus (INAH-3)
  23. An area in the brain that is found to be larger in gay men than in heterosexual men
    Suprachiasmatic nucleus (SCN)
  24. An area in the brain that is larger in gay men which connects the two hemisphere
    Anterior commisure
  25. Important for sexual behavior in female rats
    Ventromedial Hypothalamus (VMH)
  26. Haploid
  27. Diploid
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Bio Chap 7
2012-11-20 20:49:30
Biology Chapter

Biology Chapter 7
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