Nervous System: Spinal Cord and Peripheral Nerves
1. Which of the following is the major motor tract?
a. Cauda equina
2. Which of the following is the best description of a motor tract?
a. Spinothalamic tract
b. Ascending tract
c. Descending tract
d. Gray matter
3. To achieve spinal anesthesia, a -caine drug is injected into the
a. lateral ventricle.
b. central canal.
c. subarachnoid space.
d. dorsal root ganglia.
4. A hammer strikes the Achilles tendon to elicit which stretch reflex?
c. Patellar tendon
d. Ankle jerk
5. The fifth cranial nerve, called the _____ nerve, is a mixed nerve that detects sensations from the scalp, face, and teeth.
6. The tenth cranial nerve, the _____ nerve, “wanders” outside the head area and innervates the heart and gastrointestinal systems.
d. spinal accessory
7. The oculomotor, trochlear, and abducens are cranial nerves that
a. innervate the extrinsic eye muscles (move the eyeball).
b. innervate the levator palpebrae superioris (lift the eyelid).
c. interpret sensory information from the optic nerve.
d. innervate the muscles of mastication.
8. Which of the following is not descriptive of the optic nerve?
b. Cranial nerve
c. Move the eyeball
9. Which of the following is descriptive of cranial nerve VIII?
a. Motor nerve
b. Spinal nerve
d. Concerned with vision
10. Which of the following is most descriptive of the phrenic nerve?
a. Concerned with the sensation of smell
b. Innervates the muscles of the eyeball
c. Motor nerve supplying the diaphragm
d. Sensory nerve concerned with balance
11. Which of the following is least descriptive of the olfactory nerve?
b. Concerned with the sense of smell
c. Cranial nerve I
d. Moves the tongue
12. An antibiotic-induced ototoxicity damages which nerve?
a. Cranial nerve X
b. Facial nerve
c. Vestibulocochlear nerve
d. Cranial nerve II