PSY-B - Psychology PSY-B 394 Lecture Notes - Lecture 6: Adrenocorticotropic Hormone, Pineal Gland, Adrenal Cortex
11 Apr 2016
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Chemical signaling between neurons: synapse [ to clasp ]: connecion between 2 neurons (presynapic and postsynapic) Do not touch, have synapic gap/clet of 20 nm: axodendriic synapse: most common, axon to dendrite, axosomaic synapse: axon to soma/cell body, axoaxonic synapse: inluence transmiter release, axon to axon. Presynapic neuron should contain nt and mechanism for making nt. Mechanisms for terminaing nt"s efects should be present. Nt should be released from terminal when neuron is simulated. Receptors that bind nt on postsynapic cell. Applicaion of nt to postsynapic neuron should have same efect as simulaion of presynapic. Efects of nt should be blocked by speciic antagonist in dose-dependent manner mimicked by speciic agonists. Classical nt and neuropepides: dale"s law: neuron can only contain one nt, wrong! Neurons synthesize and release more than one nt. Only 1 classical nt (serotonin, acetylcholine, dopamine, glycine, norepinephrine )
