Synaptic communication between two neurons usually occurs via ____.
a. direct contact
b. molecular transduction
c. chemical messengers
d. electrical signaling
Question 2
Professor Freeman calls on his student Maya to describe how the presence of myelin affects an action potential. Maya should respond with which of the following statements?
a. Current flows along the unmyelinated segments and action potentials propagate along the myelinated portions of the axon, decreasing the speed and efficiency of the action potential
b. Current flows under the myelin and action potentials propagate along the unmyelinated segments of the axon, decreasing the speed and efficiency of the action potential
c. Current flows along the unmyelinated segments and action potentials propagate along the myelinated portions of the axon, increasing the speed and efficiency of the action potential
d. Current flows under the myelin and action potentials propagate along the unmyelinated segments of the axon, increasing the speed and efficiency of the action potential
Neurons
Synaptic transmission. (a) Action potential reaches synapse; (b) neurotransmitter released synaptic ...
Direct-Acting Cholinergic Agnostic Agents
Direct thumb pressure to a trigger point.
Synapses Between Neurons
Axons of sympathetic preganglionic neurons enter sympathetic trunk ganglia