Exam 7: The Nervous System: Neurons and Synapses

Both excitatory and inhibitory postsynaptic potentials undergo summation.

What medication acts by increasing the action of nitric oxide as a treatment for erectile dysfunction?

Glycine is released at extensor muscles when flexor muscles are contracting.

What type of neuron is found entirely in the CNS?

Which of the following is NOT true of histamine?

Benzodiazepines act by increasing ________ activity.

What type of receptors will bind ATP and adenosine?

All axons in the PNS have a myelin sheath.

Which gas(es)can function as a neurotransmitter?

The average resting membrane potential of an axon is

Neurotransmitter release from synaptic vesicles is caused by Ca²⁺-synaptotagmin complex interruption of the SNARE complex.

Cells become more negative during hyperpolarization.

An inactivated ion channel will respond to a strong stimulus.

What coding system do neurons use to get a greater response?

The myelin sheaths of CNS neurons are produced by

What neurotransmitter is used by neurons with cell bodies in the raphe nuclei along the midline of the brainstem?

Curare is a competitive ACh antagonist at _____________ ACh receptors.

Nicotinic receptors utilize G-proteins to regulate the opening of ion channels.

Which of the following is NOT classified as a catecholamine?

Axonal transport from the cell body to the dendrites and axon is retrograde transport.