PNB 2XB3 Study Guide - Final Guide: Erwin Neher, Cochlear Nucleus, Far-Sightedness

• School: McMaster University
• Department: Psychology, Neuroscience & Behaviour
• Course: PNB 2XB3
• Professor: Daniel Goldreich

Document Summary

Review numerical aspects of the nervous system (width of synaptic cleft, conduction velocity of different axon types, size of neuron cell body, and so on). 100 billion neurons, brains power in watts: 20w, cell body diameter:10 um (10^-6 m), synaptic cleft=20-40nm wide microns in a cm=10,000 glial cells are the most common cell of the nervous system. Scavenges cellular debris-microglia: define the following terms: cns, pns, cranial nerve, spinal nerve, dermatome. Cns- parts of the nervous system within bone (spinalcord, brainstem, brain) The k+ concenentration is greater inside than outside the neuron, due to the action of the sodium/potassium transporter pump. At rest the neuron is primarily permeable to k+. because the membrane consist of. So, k+ diffuses out of the cell, making the inside negative: write out the coulomb force law, nernst equation, goldman hodgkin katz equation, length and time constant equations, driving force equation, and snell"s law from memory.