01:119:115 Lecture Notes - Lecture 14: Secondary Sex Characteristic, Adrenal Medulla, Thyroid
8 Jul 2015
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03/27/2014: endocrine glands" function in regulating homeostasis, development and behavior, calcium (ca^2+) is essential for normal function of all cells, ca^2+ blood levels under endocrine control. If calcium low, parathyroid glands (on posterior surface of thyroid) release parathyroid hormone (pth: pth has direct affect on calcium levels (see fig. If calcium above set point, thyroid gland releases calcitonin. Sex hormones have affect growth, development, reproductive cycles and sexual behavior: adrenal glands secrete small quantities but gonads are primary source, 3 major classes, androgens. 3: several mechanisms exist, budding, fission, parthenogenesis. If animals can reproduce without gamete fusion, why sex? (*the song let"s talk about sex starts to play*) (lol jk: there is a two-fold cost to sex a. b. In asexual repro, each individual makes 2 progeny (fig 46. 3) 4: gonads: produce sperm and repro. hormones. 3. testes develop in abdominal cavity; descent into scrotum just before birth a: some babies have retractile testes testis w/in scrotum = testicle.
