CSB332H1 Lecture Notes - Lecture 18: Olfactory Bulb, Muscle Spindle, Myocyte
16 Aug 2012
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Msgs travel to primary sensory areas in cortex (dif area for each. Sensory signals go 1st to thal (relay station) Sensory signals greatly amplified at level of rec. Fish electrorecs can detect electrical fields of a few nanovolts/cm2 smaller than field that would be produced if two wires connected to either pole of a flashlight battery would be dipped into either end of atlantic! sense) higher regions of brain for processing : processing involves determining what signals are coming in from other parts of brain, + incorporating prior learning, overall goals, 2ndary & tertiary areas: output regulated by motoneurons. Figure 19. 2 red = stretch amt as increase stretch, amplitude of rec pot increases relationship not linear. Short recs sensory recs located on sensory cells that have rec pots that spread passively from sensory region to synaptic region: ex. cells w short axons, often epithelial, no axons, no aps.
