A nerve fiber is enclosed in its own fibrous sleeve called perineurium.
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During an action potential, Potassium enters the cell causin…
During an action potential, Potassium enters the cell causing hyperpolarization.
The optic nerve provides sensory and motor function.
The optic nerve provides sensory and motor function.
During an action potential, Sodium enters the cell causing d…
During an action potential, Sodium enters the cell causing depolarization.
The phrenic nerve emerges from the cervical plexus.
The phrenic nerve emerges from the cervical plexus.
Action potentials can occur on dendrites.
Action potentials can occur on dendrites.
A sympathomimetic drug would stimulate increased blood gluco…
A sympathomimetic drug would stimulate increased blood glucose levels by breaking down glycogen in the liver.
Action potentials only occur on nerve fibers.
Action potentials only occur on nerve fibers.
Sensory impulses enter the ventral horn of the spinal cord.
Sensory impulses enter the ventral horn of the spinal cord.
A neuron is stimulated, which changes membrane potential to…
A neuron is stimulated, which changes membrane potential to the point where voltage-gated Na+ channels open and begin depolarizing the cell. The neuron has reached