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
Placing an endotracheal tube in the trachea with direct visualization by laryngoscopy.
Two oxygen molecules in van der Waals contact
Sample communication analysis
Synaptic Transmission
Typical wiring diagram of a V-6 distributorless (direct fire) ignition system.
Axons of sympathetic preganglionic neurons enter sympathetic trunk ganglia