Chapter 13 study questions

) A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye, and the corner of his mouth droops. Which cranial nerve has been damaged?

faical

A major nerve of the lumbar plexus is the ________.

femoral

Which nerve is compressed in carpal tunnel syndrome?

median

) Starting at the spinal cord, the subdivisions of the brachial plexus are (in order) ________.

roots, trunks, divisions, and cords

Spinal nerves exiting the cord from the level of L4 to S4 form the ________

sacral plexus

An emergency medical technician is examining a trauma victim by shining a pen light into her patient's eye. She records the reactivity of the patents pupils as they constrict when stimulated by the light. This test supports which of the following?

The patient has function of the oculomotor nerve

) The sciatic nerve is a combination of which two nerves?

common fibular and tibial

As a cook chops red onions he begins to tear up due to activation of the lacrimal gland. Which of the following nerves provided the stimulus?

the facial nerve

Injury to cervical vertebra C3-C4 is particularly problematic because ________.

the phrenic nerve that serves the diaphr

A patient has lost vision on the left side of both eyes. The patient has likely suffered damage to ________.

the right optic tract

) Which of the following nerves does not arise from the brachial plexus?

phrenic

9) Striking the "funny bone" is actually stimulation of (or injury to) the ________.

ulnar nerve

A patient is suffering from the inability to distinguish various types of odors. This patient may have damage to which of the following?

Olfactory

) Problems in balance may follow trauma to which nerve?

abducens

The cranial nerve with a cervical origin (spinal cord) is the ________.

accessory

Nerves that carry impulses toward the CNS only are ________.

afferent nerves

Complicated interlacing of the ventral rami form networks called nerve plexus. The crisscrossing of the nerve fibers from the various spinal nerves is advantageous because ________.

injury to any single spinal nerve will be less damaging as there is less chance of total loss of innervation to any particular organ

Feeling a gentle caress on your arm would likely involve all of the following except ________.

lamellar corpuslces

) A fracture of the ethmoid bone could result in damage to which cranial nerve?

olfactory

A patient has an injury of the spine and is now suffering from a loss of motor function in his right arm. However, he still has normal sensory function in the arm. Based on this information it is likely that the patient has nervous tissue damage located at ________.

the ventral root located at one or more of the cervical vertebra

A doctor asks her patient to follow the motion of her finger as she moves it up and down, left and right. Which of the following cranial nerves is not being tested?

the vestibulocochlear nerve

The posterior side of the thigh, leg, and foot is served by the ________ nerve.

tibial