IONM Midterm Exam Questions with Correct Answers | Latest Update 100% Pass

IONM Midterm Exam Questions

with Correct Answers | Latest

Update 100% Pass


What spinal nerve root innervates the sternocleidomastoid? - CORRECT

ANSWER-C2 (Spinal Accessory Nerve)

What spinal nerve root innervates the Trapezius? - CORRECT ANSWER-C3, C4

(Spinal Accessory nerve)

What spinal nerve root innervates the deltoid and biceps? - CORRECT

ANSWER-C5, C6

What spinal nerve root innervates the triceps? - CORRECT ANSWER-C7, C8

What spinal nerve root innervates the extensor carpi radialis? - CORRECT

ANSWER-C6, C7

What spinal nerve root innervates the flexor carpi ulnaris? - CORRECT

ANSWER-C8

What spinal nerve root innervates the first dorsal interosseous and the abductor

digiti minimi? - CORRECT ANSWER-C8, T1

,What spinal nerve root innervates the intercostals? - CORRECT ANSWER-T1 -

T11

What spinal nerve root innervates the rectus abdominus? - CORRECT ANSWER-

T5- T12

What spinal nerve root innervates the iliopsoas and the sartorius? - CORRECT

ANSWER-L2, L3

What spinal nerve root innervates the adductor longus? - CORRECT ANSWER-

L2, L3, L4

What spinal nerve root innervates the quadriceps (rectus femoris)? - CORRECT

ANSWER-L3, L4

What spinal nerve root innervates the tibialis anteroir? - CORRECT ANSWER-L4,

L5

What spinal nerve root innervates the biceps femoris and the gastrocnemious? -

CORRECT ANSWER-S1, S2

What spinal nerve root innervates the extensor hallucis longus? - CORRECT

ANSWER-L5, S1

What spinal nerve root innervates the abductor hallucis? - CORRECT ANSWER-

S1-S2

What spinal nerve root innervates the external anal sphincter? - CORRECT

ANSWER-S3, S4


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,What muscle corresponds to cranial nerve III (oculomotor)? - CORRECT

ANSWER-Inferior rectus

What muscle corresponds to cranial nerve IV (trochlear)? - CORRECT

ANSWER-Superior oblique

What muscle corresponds to cranial nerve V (trigeminal)? - CORRECT

ANSWER-Temporalis, masseter

What muscle corresponds to cranial nerve VI (abducens)? - CORRECT

ANSWER-Lateral rectus

What muscle corresponds to cranial nerve VII (facial)? - CORRECT ANSWER-

Orbicularis Oculi, Orbicularis oris, mentalis

What muscle corresponds to cranial nerve IX (glossopharyngeal)? - CORRECT

ANSWER-Stylopharyngeus (soft palate)

What muscle corresponds to cranial nerve X (vagus)? - CORRECT ANSWER-

Thryoarytenoid

What muscle corresponds to cranial nerve XI (accessory)? - CORRECT

ANSWER-Trapezius

What muscle corresponds to cranial nerve XII (Hypoglossal)? - CORRECT

ANSWER-Tongue

, Corticospinal tract - CORRECT ANSWER-o The pathway originating in the

motor cortex and terminating in the lower motor neurons or interneurons in the

spinal cord

o Controls movement of the trunk and extremities

Corticobulbar tract - CORRECT ANSWER-o The pathway originating in the

motor cortex and terminating at motor cranial nuclei in brainstem that control the

head, neck and face movement

Somatosensory tract - CORRECT ANSWER-· relay information from

proprioceptors (position and self-movement), mechanoreceptors (touch, pressure,

stretch), nociceptors (pain) and thermoreceptors (temperature) to the contralateral

sensory cortex.

Where is the end of the spinal cord located and what is it called? - CORRECT

ANSWER-conus medullaris. Located between T 12 and L1

Spinal cord blood supply - CORRECT ANSWER-· The anterior spinal artery

(bilateral perfusion), left posterior spinal artery and right posterior spinal artery

along with corresponding segmental arteries are primarily responsible for spinal

cord perfusion.

How many spinal vertebrae are there? - CORRECT ANSWER-o 7 cervical

vertebrae

o 12 thoracic



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