Electrochemical impulse :red_cross: How electric current is generated in…
Electrochemical impulse :red_cross: How electric current is generated in the body.
Action potential : :red_cross:
The voltage difference across a nerve cell membrane when the nerve is excited.
Stimulated axon :check:
Sodium-potassium pump :red_cross:
Located in the cell membrane, an active transport method that moves sodium ions out of and potassium ions into a cell against their concentration gradient.
Resting potential :red_cross:
Voltage difference across a cell membrane during the resting stage
Unstimulated axon :check:
Polarized membrane :check:
Refractory period :check:
Hyperpolarized :red_cross: A Condition when the inside of the nerve cell membrane becomes more negative than the resting potential.
Threshold level :red_cross: Minimum level of a stimulus required to produce a response.
All-or-none response :red_cross: A nerve or muscle fibre responds completely or not at all to the stimulus.
Synaptic transmission :check:
Small spaces between neurons or between neurons and effectors.
Postsynaptic neuron :red_cross:
Neuron that carries impulses away from the synapse.
Neurotransmitter released from vesicles in the end plates of neurons, that makes the postsynapatic membranes more permeable to sodium ions.
Enzyme, which breaks down acetylcholine, that is released from postsynapatic membranes in the end of plates of neurons shortly after acetylcholine.
Presynaptic neuron :red_cross:
Neuron that carries impulses to the synapse.
Chemicals released from vesicles into synapses. Located in the end plates of axons.
Summation :red_cross: Effect produced by the accumulation of neurotransmitters from two or more neurons
Key: Check = I know, X = Don't know