NEUR 2200 Chapter Notes - Chapter 3: Axon Hillock, Dendrite, Cell Membrane
23 Sep 2015
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Cells of the nervous system: nervous system is made from two types of cells, neurons (afferent) system animals. Sensory: brings information into the brain from sensory receptors. Simplest neurons short axon on either sides of the cell body. Ex, bipolar neurons in the eye have one dendrite and one. Brings sensory information from the body to the spinal cord. Dendrite is connected directly to the axon, the cell body. Interneurons: link up sensory and motor neurons in the central nervous. Have many branches to collect information from multiple sources. Large brain animals have more interneurons than smaller brain. Pyramidal cell: small with lots of dendrites on the cell body the axon is difficult to see long axon and the body is in the shape of a pyramid. Two sets of dendrites, one coming from the apex of the cell body and the other two coming from either sides and spinal cord.
