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HumanPhysioNervous

TermDefinition
Acetylcholine neurotransmitter involved in attention, memory and muscular contractions
Action Potential electric stimulus which triggers a response in a cell
Depolarization sodium ions enter the cell while potassium ions exit the cell, causing a change in membrane potential from -70 mV to 50 mV
GABA inhibitory neurotransmitter which reduces brain excitability
Glutamate excitatory neurotransmitter which increases brain excitability
Integration process in which spinal cord and brain interneurons identify a stimulus and determine what response is needed
Interneuron neurons in the spinal cord and brain
Membrane Potential electric charge of a cell; cell resting potential is -70 mV
Motor Neuron neurons which stimulate muscles or glans
Motor Response motor neurons elicit responses from muscles or glands based on a stimulus
Neuron primary cell of the nervous system
Neurotransmitter chemical messengers in the body which triggers various bodily responses
Refractory Period membrane potential changing from below -70 mV back to resting potential through the sodium potassium
Repolarization potassium ions flow into the cell, and sodium ions exit the cell; membrane potential changes from 50 mV to below -70 mV
Sensation process of sensory neurons detecting external stimuli
Sensory Neuron neurons with specialized receptors to detect stimuli
Serotonin neurotransmitter with a role in regulating mood, sleep and apetite
Sodium Potassium Pump enzyme in cells' membrane powered by ATP to move sodium and potassium ions in and out of the cell
Stimuli internal or external events sensed by neurons such as temperature, pressure, blood glucose levels and pain
Synaptic Cleft space between two neurons
Created by: user-1804934
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