ANP 1105 Lecture Notes - Lecture 2: Nissl Body, Autonomic Nervous System, Homeostasis

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: William Staines

Document Summary

Cellular physiology of nerve and muscle - (lecture 3-7) sept. 18, 22, 25, 29, oct. 3. Homeostasis: autonomic nervous system and endocrine system (lecture 8-9) oct. 6, 9. The respiratory system (lecture 19-21) - nov 27, dec. 1, 4, 8. What is a ganglion? lots of: neuron processes dendrites axons axonal terminals. 2 more terms: tract: bundle of nerve processes in cns nerve: bundle of nerve processes in pns. Dendrites: (receptive region: short, tapering, branched extensions; usually hundreds/cell body, enormous sa for reception from other neurons, conduct impulses toward cell body, short distance, graded potentials. Axon: arises from axon hillock; variable length (can be > 1 metre, rate of conduction increases with axon diameter, usu. 4. 1. 5 indicate the effect of axon diameter on neuron conduction velocity. Neurotransmitters convey information from one axon to the next. Axon has same organelles as cell body, but no nissl bodies; axons quickly degenerate if cut.