PS101 Lecture Notes - Lecture 6: Latrodectus, Autonomic Nervous System, Selective Serotonin Reuptake Inhibitor
Document Summary
Acetylcholine: connections between motor neurons and voluntary muscles (no acetylcholine + no movement, ie: black widow spider venom stopping breathing because of the prevention of acetylcholine present in the system) Predominant in fear such as fight or flight (ie: too much or too little can lead to schizophrenia, paranoia, sleep issues). Serotonin: regulating mood, sleep, impulsivity, aggression and appetite. This class of neurotransmitters is present in anti-depressants/anxiety. Mao inhibitors: monoamine oxidase inhibitors (old class of drugs) Ssri: selective serotonin reuptake inhibitors slow reuptake (newer drugs used because of slightly less side effects) Gaba: sleep, reduces arousal (thought and emotions), controls anxiety. Endorphins: relieve pain and produce feelings of pleasure and well-being ( runner"s high ) Somatic nervous system (skeletal and muscular functions) 3 major sections: hindbrain: medulla, cerebellum, pons. Located at back of brain, closest to spinal column. Functions of brain include breathing, blood pressure, circulation, reflexes (coughing, swallowing) Survival method (responsible for bodily functions and their regulation)
