Nervous System Practice Questions

Question 1

Superior temporal gyrus lesion leads to?

Accepted Answer

Wernicke's aphasia

Answer

Anomic aphasia

Answer

Broca's aphasia

Answer

Non-fluent aphasia

Question 2

What are the typical contents of a meningocele sac?

Accepted Answer

Meninges and CSF

Answer

Spinal cord

Answer

Dura mater

Answer

Cauda equina

Question 3

All are true regarding brachial plexus injury, except:

Accepted Answer

Preganglionic lesions have a better prognosis than postganglionic lesions

Answer

In Klumpke's palsy, Horner's syndrome may be present on the ipsilateral side

Answer

Erb's palsy causes paralysis of the abductors and external rotators of the shoulder

Answer

Histamine test is useful to differentiate between the preganglionic and postganglionic lesions

Question 4

What is the primary symptom associated with a lesion in Wernicke's area?

Accepted Answer

Fluent speech with poor comprehension

Answer

Inability to understand language

Answer

Inability to repeat phrases

Answer

Difficulty in forming sentences

Question 5

Which of the following structures in the central nervous system contains major autonomic reflex centers?

Accepted Answer

Medulla oblongata

Answer

Thalamus

Answer

Cerebellum

Answer

Hypothalamus

Question 6

Which spinal nerves are affected in Klumpke's paralysis?

Accepted Answer

C8-T1

Answer

C3-C6

Answer

C6-C7

Answer

C4-C5

Question 7

Nerves of pharyngeal arch develop from

Accepted Answer

Neural crest cells

Answer

Mesoderm

Answer

Neuroectoderm

Answer

Ectoderm

Question 8

The infratentorial dura is supplied by branches of the ___?

Accepted Answer

Upper cervical spinal nerves and vagus nerve

Answer

Accessory nerve and upper cervical nerves

Answer

Only vagus nerve

Answer

Only upper cervical nerves

Question 9

A patient undergoing a minor surgical procedure is given lignocaine injection. Assertion: Local anaesthetics act by blocking nerve conduction. Reason: Small fibers and non-myelinated fibers are blocked more easily than large myelinated fibers.

Accepted Answer

Both Assertion and Reason are true, and Reason is not the correct explanation for Assertion

Answer

Assertion is false, but Reason is true

Answer

Both Assertion and Reason are true, and Reason is the correct explanation for Assertion

Answer

Assertion is true, but Reason is false

Question 10

All of the following are correct about ketamine, EXCEPT which of the following?

Accepted Answer

It is a potent bronchoconstrictor

Answer

It increases arterial blood pressure

Answer

It inhibits polysynaptic reflexes in the spinal cord

Answer

It functionally "dissociates" the thalamus

Nervous System — MCQs

Nervous System — MCQs

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