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Neurophisology: The generation, transmission, and integration of neural signal

by: Upasana Raja

Neurophisology: The generation, transmission, and integration of neural signal PSY 2501 - 002

Marketplace > Temple University > Psychlogy > PSY 2501 - 002 > Neurophisology The generation transmission and integration of neural signal
Upasana Raja

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Chapter 3 notes for exam
Sheree Logue (P)
Study Guide
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This 2 page Study Guide was uploaded by Upasana Raja on Wednesday March 9, 2016. The Study Guide belongs to PSY 2501 - 002 at Temple University taught by Sheree Logue (P) in Fall 2015. Since its upload, it has received 26 views. For similar materials see FOUNDATIONS OF BEHAVIORAL NEUROSCIENCE in Psychlogy at Temple University.


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Date Created: 03/09/16
Neurophysiology: The study of the life processes of neuron  Action Potential: The propagated electrical message of a neuron that travels along the axon to the presynaptic axon terminal  Neurotransmitter a.k.a. synaptic transmitter, chemical transmitter, or simple transmitter: The chemical released from the presynaptic axon terminal that serves as the basis of communication between neurons  Ion: An atom or molecule that has acquired an electrical charge by gaining or losing one or more electrons  Anion: A negatively charged ion, such as a protein or chloride ion  Cation: A positively charged ion, such as a potassium or sodium ion  Intracellular Fluid a.k.a. Cytoplasm: The watery solution found within cells  Extracellular Fluid: The fluid in the spaces between cells (interstitial fluid) and in the vascular system  Cell Membrane: The lipid bilayer that ensheathes a cell  Microelectrode: An especially small electrode used to record electrical potentials from living cells  Resting Membrane Potential: A difference in electrical potential across the membrane of a nerve cell during an inactive period  Millivolt (mV): A thousandth of a volt  Negative Polarity: A negative electrical potential difference relative to a reference electrode  Lipid Bilayer: The structure of the neuronal cell membrane, which consists of two layers of lipid molecules, within which float various specialized proteins, such as receptors  Ion Channel: A pore in the cell membrane that permits the passage of certain ions through the membrane when the channel is open  Gated: An ion channel may be opened or closed by factors such as chemicals, voltage charge, or mechanical actions  Potassium Ion (K+): A potassium atom that carries a positive charge because it has lost on electron  Diffusion: The spontaneous spread of molecules of one substance among molecules of another until a uniform concentration is achieved  Selective Permeable: The property of a membrane that allows some substance to pass through, but not others


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