ECC ECC Neurological Assessment & Pathology 1

Question 1

Which cranial nerve is assessed when testing a horse's menace response?

Accepted Answer

Cranial nerve II (optic) and VII (facial)

Answer

Cranial nerve III (oculomotor)

Answer

Cranial nerve V (trigeminal)

Answer

Cranial nerve VIII (vestibulocochlear)

Question 2

Ataxia in a horse is best described as:

Accepted Answer

Incoordination of voluntary muscle movement

Answer

Muscle weakness without coordination loss

Answer

Complete paralysis of the hindlimbs

Answer

Abnormal reflex responses only

Question 3

Which grading scale is most commonly used to score equine ataxia in the US?

Accepted Answer

Mayhew/Nollet Ataxia Scale (0–5)

Answer

Modified Ashworth Scale

Answer

Glasgow Coma Scale

Answer

AAEP Lameness Scale

Question 4

A horse that consistently sways when walking in a straight line but improves on a circle most likely has:

Accepted Answer

Cervical spinal cord compression

Answer

Peripheral nerve damage

Answer

Forebrain disease

Answer

Inner ear infection only

Question 5

The tail-pull test in horses primarily evaluates function of which spinal cord region?

Accepted Answer

Lumbosacral (L1–S5)

Answer

Cervical (C1–C5)

Answer

Thoracic (T1–T18)

Answer

Sacrococcygeal

Question 6

Equine Protozoal Myeloencephalitis (EPM) is caused by which organism?

Accepted Answer

Sarcocystis neurona

Answer

Borrelia burgdorferi

Answer

Streptococcus equi

Answer

Rhodococcus equi