Quiz 7 Flashcards
the neuronal process that recieves signals from another neuron is the
dendrite
myelin sheaths in the PNS are produced by the
Schwann cells
what are ciliated CNS neuroglia that play active roles in moving cerebrospinal fluid called?
ependymal cells
a change in membrane potential from +30 mV to -40 mV would be termed__________
repolarization
Generation of an action potential can be inhibited by all of the following except
depolarization
a neuronal circuit where incoming information is spread around or amplified is ______
diverging
The nervous system has three overlapping functions, which is a logical sequence of these three functions?
sensory input, integration, motor output
the propagation of an action potential along a myelinated axon from one node of Ranvier to the next is known as
saltatory conduction
at rest, a cell will have more________ ions outside the cell than in the cytoplasm.
sodium
a membrane maintains its resting potential mainly due to
the sodium-potassium pump
during the ______________, the neuron cannot respond to a second stimulus, no matter how strong.
absolute refractory period
dopamine and serotonin are examples of which class of neurotransmitters?
biogenic amines
immediately after an action potential has peaked, which cellular gates open?
potassium
the location at which a neuron interacts with its target cell (another neuron or muscle cell) is called the
synapse
Nerves are found in the _________ while tracts are found in the __________
PNS; CNS
