PSY 315 Study Guide - Midterm Guide: Hypothalamus, Albert Hofmann, Narcolepsy
Document Summary
Mechanism of action amphetamines: mechanisms, work on catecholamines (da and ne): produce formidable adrenergic response at both peripheral and central nervous synapses: Inhibits mao: strong effect on 5-ht neurons, decreased tryptophan hydroxylase activity at certain area. Caffine-mechanism of action impaired synthesis of 5-ht: block adenosine receptors (naturally occurring depressant in the body, 2. increase cell metabolism, release ca++ release--> increase musle contraction. It"s how food gets: down your throat through your stomach through your small intestine then through your large intestine to it"s final destination the rectum. Peristalsis or peristaltic action is what moves food through your entire digestive tract. When things go wrong with peristalsis, you can end up with bowel cramps, constipation, diarrhea, abdominal pain, etc. , (and other things like gerd) Caffeine, alcohol and cigarette smoking are all suspected of causing problems with peristalsis. Some people have more nerve endings or pain receptors in their intestines, which can cause spasms in response to food irritants.
