PSYC 100 Chapter Notes - Chapter 3: Midbrain, Striatum, Enzyme

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: Russell Day

Document Summary

Neuron: cells in the ns that communicate with each other, perform information processing tasks. Motor neurons: carry signals from the spinal cord to muscle to produce movement, long axons that can stretch to muscles. Interneurons: connect sensory/motor and other interneurons, most abundant in body, some carry info from sensory into ns, other carry info from ns to motor. Purkinje cells are interneurons, carry info from cerebellum to rest of brain/spinal cord: dense, elaborate dendrites that resemble bushes. Pyramidal cells are found in cerebral cortex, have triangular body and 1 long dendrite with many smaller ones. Bipolar cells are sensory neurons found in retina, have one axon and one dendrite. Conduction: movement of electric signal within neurons from dendrite to cell body, then throughout axon. Transmission: movement of signal from one neuron to another over synapse. In resting state, channels open, while na are closed. Terminal buttons: knobs that branch out from axon.