Psychology 1000 Lecture Notes - Lecture 3: Peripheral Nervous System, Autonomic Nervous System, Central Nervous System

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

The neural structures that lie outside the brain and spinal cord. Specialized neurons help carry out input/output functions that are necessary to sense what is going on inside and outside of our bodies. Sensory neurons - carry input information from our senses to the brain. Motor neurons - send messages from the brain to muscles to control our movement. Consist of things that we are constantly aware of and have some control over. Interneurons - form connective/associative functions with the nervous system. Eg. recognize a song by linking sensory input from the song we"re hearing with memory of that song. Axons of sensory neurons form sensory nerves; axons of motor neurons form motor nerves. Inside the brain and spinal cord, the nerves are called tracts. Somatic system allows you to sense and respond to your environment. Controls glands and smooth (involuntary) muscles that form the heart, blood vessels, and lining of the stomach and intestines.