Session 9 - oral cavity and pharynx Flashcards Preview

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Flashcards in Session 9 - oral cavity and pharynx Deck (10):

which nerve provides motor innervation to most of the muscles of the tonque

hypoglossal nerve


which muscle of the tongue is not innervated by the hypoglossal nerve and which nerve is it innervated by

innervated by the vagus nerve


what are the intrinsic muscles of the tongue

There are four paired intrinsic muscles of the tongue and they are named by the direction in which they travel: the superior longitudinal, inferior longitudinal, transverse and vertical muscles of the tongue. These muscles affect the shape and size of the tongue – for example, in tongue rolling – and have a role in facilitating speech, eating and swallowing.
they are not attached to bone but are attached to other muscles


what are the extrinsic muscles of the tongue



which nerves provide sensory innervation to the tongue

anterior 2/3
sensation- trigeminal Vc
taste- facial

posterior 1/3
sensation and taste - glossopharyngeal


where does saliva form the submandibular gland empty

empties via the wharton duct on the posterior surface of the tongue


where does the parotid gland empty

via the stensen duct
around 2nd upper molar


what is sialolithiasis

salivary gland stones
Most stones are located in the submandibular glands
Dehydration, reduced salivary flow
Most stones less than 1cm diameter
Symptoms (eating stimulates) - as you release saliva when you eat
• Pain in gland
• Swelling
• Infection
• Diagnosis- history, x-ray, sialogram


what symptoms does tonsillitis present with

• Fever
• Sore throat
• Pain/difficulty swallowing
• Cervical lymph nodes
• Bad breath


what symptoms does a peritonsillar abscess present with

• Severe throat pain
• Fever
• Bad breath
• Drooling
• Difficulty opening mouth
deviates uvular to one side

can follow tonsillitis or arise on its own