HMB200H1 Final: HMB200 2014 Exam Summary Notes.pdf
Document Summary
Lecture 13: hypothalamus - feeding and obesity hypothalamus is the main area for food intake control: before, during, after eating. Feeding centers: lateral hypothalamus (lh), paraventricular hypothalamus (pvn), ventromedial. Feeding: lh and pvn: pvn gets input from neuropeptide y (npy) and ne to increase feeding. Intestines, pancreas, gall bladder: hormones insulin, cck, pyy3- 36. Pomc/cart and agrp/npy: pomc/cart: inhibits feeding. Activated by: leptin, insulin: agrp/npy: stimulates feeding. Inhibited by (no feeding): pyy, leptin, insulin. Lecture 14: sex and gender part i. Sry gene: sex determining region of the y chromosome. Male gonads produce 2 hormones: testosterone and amh (anti- mummarian hormone) result of the sry gene. Males: darker sdn result of testosterone converting to estrogen = brain differentiation. Sdn triggers the on set of puberty and production of hormones in the hypothalamus. Primary sex characteristics: driven by sry gonadal changes (reproductive organs)
