Vagus Nerve Flashcards

1
Q

Development?

A

Sensory ,motor & parasympathetic fibers

In association with branchial arches

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2
Q

Exit from brain?

A

Behind the olive close to IX&XI nerves

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3
Q

Exit from skull?

A

Jugular foramen

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4
Q

General character?

A
General somatic sensory 
General visceral sensory 
General visceral motor 
Special visceral motor 
Special visceral sensory
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5
Q

Parts?

A

Cranial
Cervical
Thoracic
Abdominal

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6
Q

Branches of cranial & it’s innervation & topography ?

A

Meningeal(meninges)- from superior ganglion & passes to cranial dura matter in posterior cranial fossa
Auricular (skin of external surface of auricle& posterior wall of external acoustic meatus)- from superior ganglion & passes over mastoid canaliculi of temporal bone

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7
Q

Branches of cervical ,innervation & topography?

A

Pharyngeal (wall of pharynx)-throat,palatopharyngeus ,palatoglossus muscles
Superior cervical cardiac- passes downward common carotid artery (thyroid gland & thymus)
Superior laryngeal -arises from inferior ganglion of vagus nerve (tunica mucosa of pharynx & tongue )
Recurrent laryngeal (right & left) - passes upward between oesophagus & trachea;tunica mucosa of larynx and its muscles

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8
Q

Branches of thoracic part & innervation?

A

Bronchial branch - forms pulmonary plexus (lungs )

Oesophagus- forms esophageal plexus (surface of oesophagus)

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9
Q

Branches of abdominal, topography & innervation?

A

Anterior vagal trunk - front surface of stomach (anterior gastric,liver or hepatic branches)
Posterior vagal trunk- posterior wall of stomach (posterior gastric,coeliac branches)

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