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Phys Final
A synapse consists of: | a synaptic knob, cleft, the plasma membrane of a postsynaptic neuron |
When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction. |
Serotonin is an example of a(n): | amine neurotransmitter. |
Which is true of an action potential? | The outside of the plasma membrane is negatively charged, and the inside is positively charged. |
Severe depression can be caused by a deficit in certain brain synapses of: | amines. |
Which of the following is not used by the body as a neurotransmitter? | Nitric oxide Acetylcholine Carbon monoxide are all used as neurotransmitters |
A synaptic knob would be located on a(n) | axon |
The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): | enkephalins |
For a neurotransmitter to produce an inhibitory postsynaptic potential, which of the following channels must open? | Potassium and/or chloride channels |
Within the nervous system, coding for the strength of a stimulus is accomplished through: | the frequency of nerve impulses. |
Which of the following statements about amino acid neurotransmitters is incorrect? | They are all inhibitory neurotransmitters. |
Which is true of a neuron with a resting potential? | The sodium pump has moved Na+ to the outside of the plasma membrane. |