PSYC 1000 Chapter Notes - Chapter 3: Central Nervous System, Parasympathetic Nervous System, Sympathetic Nervous System

• School: Memorial University
• Department: Psychology
• Course: PSYC 1000
• Professor: Elizabeth Russell

Document Summary

Brain and spinal cord: peripheral nervous system. Nerves in our bodies that deliver information back and forth between the nervous system. Afferent neurons: carry signals from the pns to the cns. Efferent neurons: carry signals from the cns to the pns. Main function is to send and receive information from the cns. Contains all of the nerves that gather sensory information and deliver it to the spinal cord and brain. The nerves that send information about movement from the cns to the muscles. Requires help from the cns: autonomic nervous system. Functions without the help of the cns. Sympathetic nervous system: activated under stress. Parasympathetic nervous system: active during restful times. Parasympathetic nervous system: reverses the effects of the sympathetic nervous system, returns the body to normal resting state. Spinal cord: extends from the base of the brain down the back, kept inside a body spinal column.