Which two cranial nerves mediate the gag reflex?

Devise a series of physical examination tests that assess the function of each of the cranial nerves.

Complaining of muscle weakness, Delia goes to the doctor. Devise a series of physical examination tests that would help to determine if her problem involves upper or lower motor neurons.

Which of the following structures is not part of the central nervous system?

a. The brain

b. A nerve

c. The spinal cord

d. A tract

a. What is myelin?

b. How does the myelination process differ in the CNS and PNS?

Which two types of neuroglia insulate neuron cell bodies and axons in the PNS from their surroundings?

Destruction of the ventral horn cells of the spinal cord results in loss of

a. Integrating impulses

b. Sensory impulses

c. Voluntary motor impulses

d. All of these