AMY-2A Lecture Notes - Lecture 29: Interneuron, Retina, Ganglion
Document Summary
Anterograde transport- movement of material from cell body to. Retrograde transport- movement of material from synapse to cell. Myelin sheath- wrap of scwhann cells (pns) and oligodendricytes (cns) around the synaptic knobs body axon unmyelinated (1m/s) One axon triggers he other and move down to more. Increases speed of action potential signal (myelinated (150m/s) Nodes of ranvier- gaps between myelin cells at regular intervals on axon. White matter of brain- areas with myelinated axons. Salitory conduction- where you are jumping node to node limiting # of. Gray matter of brain- areas with cell bodies and unmyelinated cell events processes. Multipolar neuron- has three or more cell processes, typically many dendrites and one axon (throughout the cns) many, most neurons have multi. Bipolar neurons- have two (bi) processes, one dendrite and one axon, each extending from opposite sides of the cell body (retina of the eye) Sensory (afferent) neurons- transmit impulses from sorsort receptors toward the.
