COGS 107A Lecture Notes - Lecture 3: Multiple Sclerosis, Synaptic Plasticity, Sensory Neuron
Document Summary
Kinesin protein : soma to terminal: retrograde. Which structure is messed up in alzheimer"s: gray matter, microtubules. Synapse - receptors: postsynaptic, structurally different, sensitive to synaptic activity. Cortical pyramidal neuron: pyramidal cell --> local axon collateral (local circuitry) --> stellate cell --> dendrites --> Extensor muscle , muscle sensory receptor, sensory (afferent) axon, interneuron, motor (efferent - exit) axon, flexor muscle: belly is always ventral. If you don"t move your leg, you may have a spinal cord injury. Classification based on number of neurites: single neurite. Classification based on dendritic and somatic morphologies: stellate cells (star-shaped, pyramidal cells (pyramid-shaped, spiny or aspinous. Further classification: by connections within the cns. From one part of the brain to the other. Golgi type ii - local circuit neurons: based on neurotransmitter type. Some neurons have long axons that stretch from one part of the cns to another. Make myelin- insulating the axon to make neuronal signaling more efficient.