Cranial Nerves Anatomy and MCQs For NEET, SSC, GPAT, Staff Nurse and CSIR NET JRF Exam

Cranial Nerves Anatomy and MCQs For NEET, SSC, GPAT, Staff Nurse and CSIR NET JRF Exam


There are 12 pairs of cranial nerves which originate from the nuclei in the inferior surface of the brain, out of which some are sensory some are motor nerves and the remaining one are the mixed nerves that means that they are both motor as well as sensory nerve. The mains of these nerve symbolizes their distribution and function. These nerves are numbered according to their connection with brain anteriorly, which are as follows-

I. Olfactory nerve:- sensory
II. Optic nerve:- sensory
III. Oculomotor nerve:- motor
IV. Trochlear nerve:- motor
V. Trigeminal nerve:- mixed
VI. Abducent nerve:- motor
VII. Facial nerve:- mixed
VIII. Vestibulocochlear nerve:- sensory
IX. Glossopharyngeal nerve:- mixed
X. Vagus nerve:- mixed
XI. Accessory nerve:- motor
XII. Hypoglossal nerve:-motor

To make our learning easier, I have provided the information related to the function, origin etc of nerve in the table give below

Name of the nerve Central connection Peripheral connection functions
Olfactory Smell area in the temporal lobe of cerebrum Mucous membrane in the root of nose Sense of


Optic Sight area in the occipital lobe of cerebrum Retina of

The eye

Sense of


Occulomotor Nerve cells in the aqueduct of midbrain 1.Superior, inferior, medial rectus muscle of eye

2.Ciliary muscle of the eye

3.Circular muscle fibers of iris

1. movement of the eyeball



2. focusing regulating of the size of the pupil.

Trochlear Nerve cells near the floor of aqueduct of midbrain Superior oblique muscle of the eye Movement of the eyeball
Trigeminal Motor fibers from pons

Sensory fibers from trigeminal ganglia

Muscles of mastication

Sensory to gums cheek lower jaw, iris and cornea






Sensation from face.

Abducent Floor of fourth ventricle Lateral rectus muscle of the eye Movement of the eye
Facial Pons Sensory fibers to the tongue

Motor fibers to the muscle of face

Sense of taste

Movement of facial expressions


a. vestibular branch

b. cochlear branch



Hearing area of cerebrum

Semicircular canals of inner eye

Organ of corti

Balance maintenance

Sense of hearing

Glossopharyngeal Medulla oblongata Parotid gland

Back of tongue and pharynx

Secretion of saliva, sense of taste and movement of pharynx
Vagus Medulla oblongata Pharynx larynx and organs, ducts gland of thorax and abdomen Movement and secretion
Accessory Medulla oblongata Sternocleidomastoid , trapezius laryngeal and pharyngeal muscle Movement of head shoulder larynx and pharynx
Hypoglossal Medulla oblongata tongue Movement of tongue


This image is take only for educational purpose from

Multiple choice questions(MCQs)

1. how many pairs of cranial nerves are present?
a. 12 b. 10
c. 13 d. 14

2. From where are the cranial nerves originated?
a. from nuclei in the superior surface of the brain
b. . from nuclei in the posterior surface of the brain
c. . from nuclei in the inferior surface of the brain
d. from nuclei in the anterior surface of the brain

3. where is the peripheral connection of optic nerve?
a. ciliary muscle of eye b. retina of eye
c. lateral rectus muscle of eye d. superior oblique muscle of eye

4. which of the following nerves are responsible for the movement of eye?
a. abducent nerve b. trochlear nerve
c. occulomotor nerve d. all of the above

5. which of the following statement is NOT true?
a. the nerves are numbered according to their connection with brain posteriorly
b. accessory nerve is a motor nerve
c. facial nerve functions for facial expressions
d. the central connection of abducent nerve is from floor of fourth ventricle

6. where is the central connection of facial nerve?
a. medulla oblongata b. pons virolii
c. cerebrum d. cerebellum

7. which of the following nerve is a mixed nerve?
a. optic nerve b. hypoglossal nerve
c. trochlear nerve d. none of the above

8. which of the following nerve is responsible for sense of taste?
a. abducent nerve b. facial nerve
c. hypoglossal nerve d. none of the above

9. Match the following-
A. abducent nerve 1. Vagus nerve
B. hypoglossal nerve 2. Lateral rectus muscle of eye
c. medulla oblongata 3. tongue
d. aqueduct of midbrain 4. Occulomotor nerve

10. What is the function of olfactory nerve?
a. sense of smell b. sense of hearing
c. sense of taste d. maintaining balance


1. 12
2. nuclei in the inferior surface of brain
3. all of the above
4. retina of the eye
5. the nerves are numbered according to their connection with brain posteriorly
6. pons
7. none of the above
8. facial nerve
9. a – 2 b – 3 c – 1 d – 4
10. sense of smell

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1. Ross and Wilson-Anatomy and physiology in health and illness; 12th edition; page no.-: 170-172.

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