PSYC 3458 Study Guide - Midterm Guide: Axon Terminal, Visual Impairment, Ribosome
9 Sep 2017
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Brief history of psychobiology / intro to neurons. Lashley ablation studies - impairment: golgi staining applying compound to brain tissues, intensifying using silver nitrate studied cellular architecture of diverse nervous systems anatomical drawings. Microfilaments = determine cell shape (actin), intermediate filaments = stabilize cell structure (keratin), microtubules = tracks for vesicle transport with motor proteins (tubulin) Brain functioned more like radiator (fluid filled ventricles) Correct observations of brain illness, observed soldiers with injuries exhibit differences. R in dendrites make receptor proteins. in behavior: axodendritic vs. axosomatic connections, function of dendrites, soma, axon, axon terminal glandular junctions etc. Brain = seat of intelligence and sensation. Soma cell body, integrates input from dendrites. Axon transmission of signals over long distances, can differ in length. Axon terminal synaptic terminal, output passed along to target, neuromuscular junctions, Axosomatic inhibitory synapses most effective as axosomatic/axoaxonic due to close. Postsynaptic neuron receives message proximity to axon hillock where nerve impulses are generated.
