PSYC 2410 Chapter Notes - Chapter 3: Dura Mater, Pia Mater, Autonomic Nervous System

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2410
• Professor: Elena Choleris

Document Summary

Divisions of the nervous system: the vertebrate nervous system is composed of two divisions, central nervous system: division of the nervous system that is located within the skull and spine. Composed of two parts: the brain (protected by the skull) and the spinal cord (protected by the spine: peripheral nervous system: division of the nervous system that is located outside of the skull and spine. Composed of two parts: the somatic nervous system and the autonomic nervous system. The sympathetic and parasympathetic nerves project from the central nervous system, but do not reach the internal organs of interest. Parasympathetic nerves synapse with secondary nerves near to the target organ: sympathetic nerves stimulate, organize and mobilize energy resources in threatening situations. Parasympathetic nerves do the opposite, conserving and calming energy usage: each autonomic target receives opposite input from sympathetic and parasympathetic systems.