The number of cranial nerve pairs are-

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2023

Explanation

The human body has exactly 12 pairs of cranial nerves that originate directly from the brain and brainstem.
These nerves are numbered I to XII using Roman numerals, based on their location from the front to the back of the brain.
They are a fundamental component of the peripheral nervous system, controlling functions primarily in the head and neck.

Option A: This is an incorrect count. There are 12 pairs of cranial nerves, not 9.
Option B: This is an incorrect count. The total number of cranial nerve pairs is 12.
Option D: This is an incorrect count. The established number of cranial nerve pairs in humans is 12.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of the Nervous System: Cranial Nerves as background academic context rather than a clinical decision trigger.
A cranial nerve assessment is a core component of any neurological examination performed by a nurse. It helps identify deficits caused by conditions like stroke, head injury, brain tumors, or infections.
Damage to a specific cranial nerve produces a predictable set of symptoms, allowing clinicians to pinpoint the location of a neurological lesion.
What if? A patient presents with a drooping eyelid (ptosis) and a dilated pupil that doesn't react to light. The nurse should suspect a problem with Cranial Nerve III (Oculomotor) and escalate care, as this can be a sign of dangerous pressure on the brainstem.

How to Approach the Question

This is a factual recall question testing basic knowledge of neuroanatomy.
First, identify the key term in the question: 'cranial nerve pairs'.
Access your memory of the fundamental structure of the peripheral nervous system.
Recall the specific number of cranial nerve pairs. Mnemonics are very useful for remembering the 12 nerves and their functions.
Compare the recalled number with the given options.
Select the option that matches the correct anatomical fact.

Concept Tested & Keywords

QSsROXV6pgJCMmCCYX4fri

E6 Anatomy Grays 43e Vol 1 Part 3 p. 33-35

E6 Anatomy Applied Ashalatha 4e pp. 424-426, 432-434

Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.