PSYC 101 Study Guide - Final Guide: Axon Terminal, Postsynaptic Potential, Parasomnia

• School: UBC
• Department: Psychology
• Course: PSYC 101
• Professor: Janel Fergusson

Document Summary

Describe how neural impulses travel within a neuron: dendrite->cell body->axon->terminal buttons->synapses->dendrite of next neuron. Describe the absolute and relative refractory periods: absolute: neuron cant fire again, positive charge, relative: neuron can fire again, but will need extra stimulation to pass the threshold to fire, charge is negative. Describe how information is transferred between neurons at the synapse. Explain postsynaptic potentials: can be excitatory or inhibitory depending on what charged particles are flowing and which direction they flow across the neuronal membrane. Describe the roles of agonists and antagonists in neurotransmitter function: agonists: increase activity at receptor by acting like its the appropriate neurotransmitter, antagonists: inhibit activity at receptor. Describe the organization of the human nervous system. Split into cns and pns: cns: spinal cord, brain, pns: somatic/autonomic, autonomic: sympathetic/ parasynpathetic. Differentiate between the peripheral and central nervous systems: pns: somatic/autonomic, sensory and motor, includes all nerves outside of brain and spinal cord, cns: spinal cord, brain.