OCC OCC Neurological Assessment & Neuromuscular Medicine

Question 1

Which cranial nerve carries the afferent limb of the corneal reflex?

Accepted Answer

CN V ophthalmic branch (V1)

Answer

CN III (oculomotor)

Answer

CN VII (facial)

Answer

CN VIII (vestibulocochlear)

Question 2

A patient presents with muscle weakness, hyporeflexia, and fasciculations. These findings are most consistent with:

Accepted Answer

Lower motor neuron lesion

Answer

Upper motor neuron lesion

Answer

Cerebellar dysfunction

Answer

Basal ganglia disorder

Question 3

In osteopathic medicine, somatic dysfunction at the OA-AA complex (C0-C2) can most directly compromise which cranial nerve function via the jugular foramen?

Accepted Answer

CN X (vagus)

Answer

CN III (oculomotor)

Answer

CN VI (abducens)

Answer

CN XII (hypoglossal)

Question 4

Which dermatome covers the lateral forearm, thumb, and index finger?

Accepted Answer

C6

Answer

C5

Answer

C7

Answer

C8

Question 5

On MRI, multiple sclerosis most characteristically shows lesions in which location?

Accepted Answer

Periventricular white matter plaques

Answer

Gray matter cortical lesions

Answer

Basal ganglia calcifications

Answer

Diffuse cortical atrophy

Question 6

A positive Babinski sign (upgoing plantar response) indicates a lesion of which neural pathway?

Accepted Answer

Corticospinal (pyramidal) tract

Answer

Spinothalamic tract

Answer

Dorsal columns

Answer

Spinocerebellar tract

Question 7

According to osteopathic neurological theory, a 'facilitated segment' is characterized by:

Accepted Answer

Spinal cord hyperreactivity due to sustained afferent input lowering the firing threshold

Answer

Permanent sympathetic inhibition at the affected spinal level

Answer

Motor neuron refractoriness to stimulation following injury

Answer

Nociceptive signals bypassing the spinal cord via direct thalamic pathways