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Physiology

Physiology weeks 7-13

TermDefinition
Membrane Potential The difference in electrical charge across plasma membranes
Local potential A slight shift away from the resting membrane potential in a specific region of the plasma membrane
Stimulus-gated channels Ion channels that open in response to chemicals produced by a sensory stimulus or by a chemical stimulus received from another neuron.
Ligand-gated channels Stimulus-gated channels that are triggered by ligands, signal molecules that bind to a receptor.
Refractory period A brief period during which a local area of an axon's membrane resists restimulation.
Synapse A place where signals are transmitted from one neuron to another neuron.
Electrical synapse Occur where two cells are joined end to end by gap junctions.
Chemical synapse Uses chemical transmitters (neurotransmitters) to send a signal from the presynaptic cell to the postsynaptic cell
Neural networks Conduct information along complex series of neurons joined together by synapses.
Neutrophins Nerve growth factors that are released by various cells of the body.
Created by: jadeattiya
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