PSY 1101 Lecture Notes - Lecture 4: Insomnia, Acetylcholine, Reuptake

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Najwa Haddad

Document Summary

The nervous system: function and structure, 2 divisions a. i. Central nervous system: brain + spinal cord a. ii. Peripheral nervous system: all neurons outside of the cns. Communication network: receives info from environment. Analyzes, organizes and integrates to rest of body. Uses info to send out instructions to rest of body. Neurons: function, basic unit of communication in nervous system. Sends it to cns for further processing a. ii. Found only in cns, only communicate with other neurons, out # other neurons and have the most complex jobs. These are the neurons analyzing, organizing, and producing behaviors a. iii. Receive instructions from interneuron and send it out to the body: structure, cell body (soma) Contains structures that manufacture everything the neuron needs to survive: dendrites. Increase surface area of soma without taking up too much space. Carries message produced by neuron to other neurons. At the end of axon branches are axon terminals which release neurotransmitters: myelin sheath.