Cranial Nerve 9&10 ( IX & X)

Question 1

Glossopharyngeal nerve is principally a ____ with preganglionic parasympathetic and few ____

Answer 1

Sensory nerve

motor fibers

Question 2

Glossopharyngeal has no real nucleus it shares nuclei with

Answer 2

Nerves VII and X

Question 3

Glossopharyngeal arises from

Answer 3

ventral surface of the medulla, in lateral to olive.

Question 4

Glossopharyngeal leaves the cranial cavity by passing through the ____ in company with

Answer 4

Jugular nerve
Vagus accessory nerves & internal jugular vein

Question 5

Glossopharyngeal nerve passes forward between

Answer 5

Internal jugular vein
External carotid artery

Question 6

Glossopharyngeal Passes at the posterior
border of ____ then lateral to it.

Answer 6

Stylopharyngeus

Question 7

When glossopharyngeal reaches the pharynx it breaks into

Answer 7

Terminal branches

Question 8

Glossopharyngeal Motor fiber orignate from ____ & supplys _____ muscles

Answer 8

Nucleus ambiguus
Stylopharyngeus

Question 9

Glossopharyngeal parasympathetic fibers arise from ____ & supplys _____ muscles

Answer 9

Inferior salivatory nucleus
Parotid gland

Question 10

Glossopharyngeal special sensory arise from ____ & terminates in _____

Answer 10

• Taste buds on posterior third of the tongue
• Nucleus of solitary tract

Question 11

Glossopharyngeal general visceral sensory : visceral sensation from mucosa of _____ ends in ____

Answer 11

• Posterior third of tongue
  Pharynx
  Auditory tube
  Tympanic cavity
  Carotid sinus
• nucleus of solitary tract

Question 12

Glossopharyngeal nerve lesions produce

Answer 12

• Difficulty of swallowing
• Impairment of taste and sensation over the posterior one-third of the tongue ,palate and pharynx.
• Absent gag reflex. Dysfunction of the parotid gland.

Question 13

Vagus Nerve arise from

Answer 13

medulla oblongata lateral to olive

Question 14

Vagus nerve leaves the skull through

Answer 14

Jugular foramen

Question 15

Vagus nerve occupies the

Answer 15

posterior aspect of the carotid sheath between the internal jugular vein laterally and the internal and common carotid arteries medially.

Question 16

Vagus nerve lies on

Answer 16

Prevertebral muscles and fascia

Question 17

Vagus nerve enters ___ through its inlet

Answer 17

thorax

Question 18

Vagus nerve ( Right) descends in front of

Answer 18

Subclavian artery

Question 19

Vagus nerve ( left ) descends in between of

Answer 19

Left common carotid
Subclavian arteries

Question 20

Vagus nerves parasympathetic fibers originate from

Answer 20

Dorsal nucleus of vagus synapses

Question 21

Vagus nerve motor fibers originate from

Answer 21

nucleus ambiguus to muscles of pharynx and larynx

Question 22

Vagus nerve visceral sensory fibers carry impulse from carry impulse from viscera in neck, thoracic and abdominal cavities to

Answer 22

Nucleus of Solitary Tract.

Question 23

Vagus nerve sensory fibers sensation
from auricle, external acoustic meatus and cerebral dura mater, to

Answer 23

Spinal Tract & Nucleus of Trigeminal

Question 24

Vagus nerve lesions produce

Answer 24

• Palatal and pharyngeal and laryngeal paralysis
• Abnormalities of esophageal motility, gastric acid secretion, gallbladder emptying, and heart rate; and other autonomic dysfunction

Question 25

the recurrent laryngeal nerve goes round the

Answer 25

subclavian artery on the right, and round the arch of the aorta on the left

Question 26

The recurrent laryngeal nerve gives motor supply to

Answer 26

all the muscles of the larynx, except the cricothyroid.