01:119:115 Lecture Notes - Lecture 12: Autocrine Signalling, Paracrine Signalling, Endocrine System
8 Jul 2015
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In fluctuating environments, animals manage a steady state within their bodies by regulating or conforming: regulators; animals using internal mechanisms to control internal change relative to external variability, conformers; allow internal change in relation to external environmental changes. Lecture 12: some organisms regulate some internal conditions while conforming to others as well, ex. Human endocrine tissues and organs: major endocrine glands 9 (figure 45. 9) **, organs containing endocrine cells 6. In prostate contribute to semen production; once inside female stimulate uterine muscles: from placenta cause uterine muscles to become more excitable; help induce labor iv. In immune function help promote inflammation and sensation of pain (aspirin, ibuprofen black prostaglandin production: synaptic and neuroendocrine signaling (figure 45. 2d) a. In some animals, chemical signals allow communication between individuals organisms: pheromones are molecules released into external environment; transmit signal to others, signals include presence of food, territory boundary, sexual receptiveness.
