Examlex
A 100-Ω resistor is connected in series with a 10-mH inductor across an ac source operating at 1000 Hz. What is the impedance of this circuit?
Neurotransmitter
A chemical substance that is released at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse, causes the transfer of the impulse to another nerve fiber, a muscle fiber, or some other structure.
Ligand-Gated Channels
Ion channels in cell membranes that open or close in response to the binding of a chemical signal (ligand), allowing ions to pass through the membrane.
Synaptic Vesicles
Membrane-bound sacs within presynaptic neurons that store neurotransmitters, which are released into the synaptic cleft to transmit signals to other neurons.
Neurotransmitter
Chemical substances released at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse, causes the transfer of the impulse to another nerve fiber, a muscle fiber, or some other structure.
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