MOTOR CRANIAL NERVE

Question 1

Cranial nerve nuclei that lies in pons include

a. vestibulocochlear nucleus
b. trochlear nerve nucleus
c. trigeminal nucleus
d. facial nucleus
e. abducent nucleus

Answer 1

1. Cranial nerve nuclei that lies in pons include

a. vestibulocochlear nucleus
c. trigeminal nucleus
d. facial nucleus
e. abducent nucleus

Question 2

Only the genioglossus of the tongue is controlled by opposite cerebral cortex.

True / False

Answer 2

True

Question 3

Match the functional component of motor supply and its supplying structures.

Special Visceral Efferent (SVE): → muscles of larynx, pharynx & face,

Somatic Efferent (SoE): → Skeletal muscle,

General Visceral Efferent (GVE): → smooth & cardiac muscles, glands

Answer 3

3. Match the functional component of motor supply and its supplying structures.

The correct answer is:

Special Visceral Efferent (SVE): → muscles of larynx, pharynx & face,

Somatic Efferent (SoE): → Skeletal muscle,

General Visceral Efferent (GVE): → smooth & cardiac muscles, glands

Question 4

The cranial nerve that emerges from posterior surface of midbrain is ________

Answer 4

Trochlear nerve

Question 5

The cranial nerve that emerges from medial surface of crus cerebri of midbrain is __________

Answer 5

Oculomotor nerve

Question 6

The cranial nerve that emerges from Pontomedulary junction is

Answer 6

Abducent nerve

Question 7

Match properly: Nerve supply of extraocular muscles

superior oblique → ,

levator palpebrae superioris →

superior rectus →

rectus lateralis →

[trochlear nerve @ abducent nerve @ oculomotor nerve@ oculomotor nerve]

Answer 7

Match properly: Nerve supply of extraocular muscles

The correct answer is:

superior oblique → trochlear nerve,

levator palpebrae superioris → oculomotor nerve,

superior rectus → oculomotor nerve,

rectus lateralis → abducent nerve

Question 8

Sternocleidomastoid and trapezius muscles are supplied by [______] roots of [_______] nerve.

Answer 8

Sternocleidomastoid and trapezius muscles are supplied by [spinal] roots of [accessory] nerve.

Question 9

The motor supply of the majority of tongue muscles are by

Answer 9

Hypoglossal nerve

[except palatoglossal muscle (by 11th CN)]

Question 10

The cranial nerve that have both cranial roots from medulla and spinal roots from upper cervical segments of spinal cord is __________

Answer 10

Accessory nerve

Question 11

Branchiomotor nuclei include

[A] Nucleus ambiguus
[B] Dorsal nucleus of vagus
[C] Trigeminal motor nucleus
[D] Facial motor nucleus
[E] Edinger-westphal nucleus

Answer 11

Branchiomotor nuclei include

[A] Nucleus ambiguus
[C] Trigeminal motor nucleus
[D] Facial motor nucleus

Feedback:
These nuclei supply motor to Pharyngeal arches muscles

Question 12

Hypoglossal nerve is motor supply to the ___________

Answer 12

Tongue

Question 13

Theme: Oculomotor nerve course

Midbrain –> interpeduncular fossa –> [_________] –> superior orbital fissure –> [________] –> extraocular muscles

orbital cavity @ cavernous sinus @

Answer 13

Theme: Oculomotor nerve course

Midbrain –> interpeduncular fossa –> [cavernous sinus] –> superior orbital fissure –> [orbital cavity] –> extraocular muscles