KP161 Lecture Notes - Lecture 7: Nostril, Decay Theory, Sketchpad
7 Apr 2016
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Chapter 4 - neural mechanisms: contributions and control. Signals are generated and sent to effectors(create movement) Nerves that link the body to cns. Afferent division (information coming in through the spinal cord comes through the dorsal end) Efferent division (information going out through the spinal cord goes through the ventral end) If myelin sheath degrades, it cannot keep the information and keep it moving quickly. Myelin insulates axon to keep the information as condensed?? as possible. Tries not to let any information out: depolarization phase, 2. Neurons at rest have a negative electrical charge (resting potential) Neurons that are excited have positive nerve impulses, or spikes (action potentials) Must go above threshold, which sits around 56. Once the neurons fire, there"s a certain amount of time before it can fire again. You cannot train your neurons to fire faster. Rostral - part of the nervous system closest to the nose nostril - superior part.
