NESC 3170 Lecture Notes - Lecture 18: Area Postrema, Grey Matter, Chemoreceptor Trigger Zone
17 Apr 2018
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Homeostasis: balance for physiological systems ie. body temperature, hormones, ex. Energy storage vs. energy usage: loop between what in uences what ie. hormones in uencing behaviours & behaviours in uencing hormones. Wardang island, australia (1937: first eld trial of miximatosis - a virus/bacteria that is fatal to rabbits, 12 pairs of rabbits introduced to australia, Very good foragers, no natural predators, very good at adapting, Induced ovulatory - will ovulate when a male mates with them, gestation is 1 month, thus can reproduce anytime, and many times within a year: instead of introducing foxes & then having a fox problem. Milieu int rieur: homeostasis - walter cannon, maintenance of a steady state within an individual by physiological and behavioural control mechanisms. Maintaining homeostasis: lots of physiology, very important in body temperature (warm blooded animals) Redirection of blood ow - cold, blood ow is concentrated to the core and less to the extremities & surface of the body (skin)
