PSY100H1 Lecture Notes - Lecture 3: Resting Potential, Frontal Lobe, Motor Cortex

• School: UTSG
• Department: Psychology
• Course: PSY100H1
• Professor: Ashley Waggoner Denton

Document Summary

Tutorial thursday january 31st -5-6 lm159 q and answer session. Academic success centre 3-4 14 college street. Nerve cells make up nervous system. 1 cm ^3 cube would contain 50 million nerve cells; brain = 80 billion nerve cells. Cns the brain + spinal cord. Peripheral nervous system- deals with every other part of the body. Are the basic unit of the nervous system. Are excitable- communicate with other neurons through chemical signals. Sensory neurons- info from environment to the brain- i am feeling this in my hand right now. Motor neuron- info from the brain to the external world- tell your hand to hold the water bottle. Come in all different shapes and sizes. The picture is just the general part idea. Dendrites- branch like extension from neurons- receive info from the other nearby neurons. Cell body- integrates all the info that dendrites receive. Axon along which axon potential flows or propogates.