ANP 1105 Chapter Notes - Chapter 14: Autonomic Nervous System, Preganglionic Nerve Fibers, Gray Ramus Communicans

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Jacqueline Carnegie

Document Summary

Chapter 14 : the autonomic nervous: autonomic nervous system (ans) : is the system od motor neurons that innervates smooth and cardiac muscles and glands. Make adjustments to ensure optimal support for body activities. Operate via subconscious control: somatic nervous system : voluntary system that controls impulses conveyed to the skeletal muscles from the central nervous system, difference of somatic nervous system and autonomic nervous system. Both have motor fibers but they differ in. The somatic nervous system stimulates the skeletal muscles. Autonomic nervous system innervates the cardiac and smooth muscles and galnds. Efferent pathways and ganglia: somatic nervous system : their motor neuron cell bodies are in the cns. Axons extend in spinal or cranial nerves all the way to the skeletal muscles they activate. Somatic motor fibers : thick, heavily myelinated, group a fibers that conduct nerve impulses rapidly.