Study Guide: Peripheral Nervous System

Which of the following is an incorrect statement?

The spinal root that has a noticeable swelling is the:

The dorsal root ganglion contains:

The phrenic nerve innervates the:

The femoral nerve arises from the:

The lower end of the spinal cord is called the caudia equina.

There are 31 pairs of spinal nerves, all of which are composed of both motor and sensory fibers.

Herpes zoster is a unique bacterial infection that almost always affects the skin of a single dermatome.

Dermatome is a term referring to a skeletal muscle group innervated by motor neuron axons from a given spinal nerve.

The brachial plexus is found deep within the shoulder.

[blank_start]facial[blank_end]: facial expressions [blank_start]olfactory[blank_end]: sense of smell [blank_start]abducens[blank_end]: peristalsis [blank_start]vestibulocochlear[blank_end]: hearing and balance [blank_start]optic[blank_end]: vision [blank_start]trigeminal[blank_end]: chewing [blank_start]glossopharyngeal[blank_end]: swallowing [blank_start]oculomotor[blank_end]: regulation of pupil size [blank_start]trochlear[blank_end]: innervation of the superior oblique muscle of the eye [blank_start]abducens[blank_end]: abduction of the eye [blank_start]hypoglossal[blank_end]: tongue movements [blank_start]accessory[blank_end]: shoulder movements

Somatic effectors are

When the outer sole of the foot is stimulated,a normal infant will extend the great toe. This is called the:

Which is the neurotransmitter in a somatic motor pathway?

Which one of the following doesn't have a sensory function?

Which one of the following doesn't have a sensory function?

Parasympathetic innervation of the heart is assisted by the:

The [blank_start]vestibulocochlear[blank_end] nerve assists with balance or equilibrium.

The douloureux is damage to the [blank_start]trigeminal[blank_end] nerve.

The most common cause of peripheral nerve damage in the United States and Europe is [blank_start]diabetes[blank_end] [blank_start]mellitus[blank_end].

The somatic motor nervous system includes all of the [blank_start]voluntary[blank_end] motor pathways outside the CNS.

Somatic reflexes are contractions of [blank_start]skeletal[blank_end] muscle.

The [blank_start]phrenic[blank_end] nerves supply the diaphragm. Any disease or injury to the spinal cord between the 3rd and 5th cervical segments may paralyze the [blank_start]phrenic[blank_end] nerve and therefore the diaphragm as well.

12 pairs

dermatome

vagus

shingles

31 pairs

optic

C1

plexus

myotome

accessory