ZOO 2090 Lecture Notes - Lecture 18: Central Nervous System, Somatic Nervous System, Peripheral Nervous System
23 Nov 2016
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Day 18: nervous system function the nervous system (along with the endocrine system) determines response of the body to changes in its environment integration. A sensory-motor integration system types of cells: Neurons can be classified according to function (sensory, motor, interneuron) or morphology (unipolar, bipolar, multipolar) cell body (soma) usually bears dendrites, receiving information and sends one or more axons transmitting impulses (action potentials) Glia = glue" two types of axon-ensheathing cells (oligodendrocytes and schwann cells), astrocytes mostly involved in structural and metabolic support, insulation, and microglia part of the immune system synapse. An axon of one neuron with a dendrite or nerve cell body of another neuron. Directional transmission of signal from one neuron to another (synaptic transmission) composition. Division by location central nervous system (cns): brain and spinal cord in addition to neuron, also interneurons. Peripheral nervous system (pns): nerves and ganglia outside the cns two kinds of neurons:
