Exam 8: Nervous System

After depolarization,the neuron cell membrane is repolarized when _____ diffuses to the _____ of the cell.

Three cranial nerves that function in eye movements are the

What is the term for the cranial nerve that permits you to smile or frown?

Which one of the following represents the correct pathway of an impulse along a reflex arc?

What is the term for the gap between myelin segments in a myelinated nerve fiber?

In inhibitory transmission at the synapse,the neurotransmitter hyperpolarizes the postsynaptic membrane and makes it more difficult to initiate an impulse.

What is the term for the ventricle that is in the region of the diencephalon?

What is the term for the spinal nerve plexus that supplies innervation to the upper extremity?

In the brain,the visual sense is perceived in the

The tough,outermost layer of the meninges is the

If a patient exhibits irregular fluctuations in body temperature,loss of appetite,and lack of thirst sensations,the portion of the brain that is not functioning properly is probably the

The white,fatty covering around some axons is called

Which one of the following is INCORRECT about the autonomic nervous system?

What is the term for the fluid channel between the third and fourth ventricles?

There is more white matter than gray matter in the cerebral cortex.

Rapid impulse conduction from one node to the next on myelinated fibers is called _____ conduction.

The depolarization of a myelinated neuron occurs

Neurons that are totally within the central nervous system are _____ neurons.

The precentral gyrus is an important motor area located within the

The most abundant type of neurons is the bipolar neuron.