PSY100H1 Chapter Notes -Amnesia, Multiple Sclerosis, Microglia
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PSY100H1 Full Course Notes
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Document Summary
Fugu/puffer fish: delicacy that has deadly tetrodotoxin (ttx) 100s die each year bc it blocks aps (specifically, blocks na ion movement) Structure of neurons: membrane, double phospholipid (fatty phosphate-containing molecs) layer, 2 main types of embedded proteins. 1)ion channels: voltage-gated, ligand-gated (chemical-based, whether drugs or natural) Beta amyloid = specific type that works with tau to break apart microtubules: neurofilament, most common. 10nm, hair-like: structural support, microfilament, smallest, 3-5nm, mostly found in neuron branches, change shape and length of branches during dev and for learning, soma, nucleus: contains dna, directs cell fxns. Ribosomes= produce proteins on their own or w/ the er: endoplasmic reticulum: Rer: ribosomes on surface, proteins constructed here. Fmrp = fragile x mental retardation protein = necessary for normal maturation: axon, axon hllock: Cone-shaped segment that lies at junction of axon and cell body. Aps start here and then go down length of axon: larger axons = faster at signalling.
