NROS 307 Study Guide - Midterm Guide: Resting Potential, Motor Neuron, Motor Unit

• School: University of Arizona
• Department: Neuroscience
• Course: NROS 307
• Professor: Alan Nighorn

Document Summary

11:06 pm: describe what a motor equivalency is. Ability of different motor systems to achieve the same behavior. In essence, we can get o the same end point with different parts of the body. What this tells us is that a lot of motor control is centered and the brain can make the endpoint happen different ways: describe what is meant by a motor unit. It is the basic building block of the motor system. The smaller diameter motor neuron has a smaller surface area ==> fewer parallel ion channels higher resistance larger epsp that reaches threshold action potential can be. If all of our motor neurons were the same size (for example, all of them were small), we"d frequently have epsps generated which would lead to a loss of movement coordination. discharged. Larger diameter motor neuron is the opposite of this.