Anatomy and Cell Biology 3319 Lecture Notes - Lecture 2: Unipolar Neuron, Schwann Cell, Basal Ganglia

• School: Western University
• Department: Anatomy and Cell Biology
• Course: Anatomy and Cell Biology 3319
• Professor: Michele Barbeau

Document Summary

Integration: the decision or processing of information, output is determined, motor output, the response to sensory info. Cns vs. pns: cns brain and spinal cord, pns nerves, ganglia. 2017-2018: the four major divisions of the nervous system are: 1. Somatomotor (efferent commands out to skeletal muscles) 3. Visceral sensory (afferent information from organs and blood vessels) 4. Visceral motor efferent output to the organs and blood vessels) Neuron: cell body and nucleus, axon carries impulse out to terminal end, where neurotransmitters are released, myelin sheath help impulses move faster, dendrites, terminal end synapses on dendrites. Types of neurons: multipolar neuron, 99% neurons, motor neurons, interneurons (lie between motor and sensory neurons, only in cns, cell body, axons, terminal end, unipolar neuron, sensory neuron, bipolar neuron. Impulse from receptor along axon towards neuron: special sensory organs, visual system, receptors activated, carries impulse from receptors to dendrites, past cell body, to terminal end.