Card Set Information
Neurophysiology Sections 18-26
Short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls.
Chemical element symbol for Calcium.
Transport of a substance out of a cell in a membrane bounded vesicle.
Chemical that an axon end secretes into a synapse.
A narrow extracellular space between the cells of a synapse.
Tiny enlargement at the end of an axon that secretes a neurotransmitter.
In a neuron, this stores various neurotransmitters that are released at the synapse.
A specialized cell or group of nerve endings that response to sensory stimuli.
Receptors that form an ion channel pore; transmembrane molecules that can open or close a channel.
A type of membrane receptor of eukaryotic cells that acts through a secondary messenger.
Depolarizing the membrane possibly triggering an action potential.
Excitatory Post Synaptic Potential
Hyperpolarizing the cell membrane.
Inhibitory Post Synaptic Potential
Slower onset and longer lasting response of post-synaptic cells to certain neurotransmitters and neuromodulators.
Slow Synaptic Potentials
Graded potential in postsynaptic cells that begins quickly and lasts only a few milliseconds.
Fast Synaptic Potentials
If activity in the modulatory neuron decreases neurotransmitter release.
Modulation of the presynaptic neuron that enhances neurotransmitter release.
Summation of two stimuli that follow one another in time.
Summation of graded potentials from several sources.
Reabsorption of a neurotransmitter by a neurotransmitter transporter of a presynaptic neuron after it has performed its function of transmitting a neural impulse.
Material is gradually lost.
Process of breaking down.
Break down of Acetocholine.
MAO; the enzyme that breaks down norepinephrine.
Group of interconnected neurons which have a specific function.
Process of lowering the threshold for propagation of the action potential of a neuron.
A number of presynaptic neurons provide input to a smaller amount of postsynaptic neurons.
A few presynaptic neurons branch to affect a larger number of postsynaptic neurons.