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Head And Neck > The Oral Cavity > Flashcards

The Oral Cavity Flashcards

1
Q

What cositutes the roof of the oral cavity?

A

The hard palate and the soft palate

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2
Q

What creates the floor of the oral cavity?

A

The tongue and other soft tissues

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3
Q

What creates the lateral walls of the oral cavity?

A

The cheeks

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4
Q

What is the anterior boundary of the oral cavity?

A

The oral fissure

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5
Q

What is the posterior boundary of the oral cavity?

A

The oropharyngeal isthmus

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6
Q

What is the oral vestibule?

A

The space between the cheeks and the teeth

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7
Q

What is the oral cavity proper?

A

From teeth to the ring made by the palatopharyngeal arch, uluca and tip of the epiglottis

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8
Q

What are the two arches of the oral cavity?

A

The anterior or palatoglossal arch

The posterior or the palatopharyngeal arch

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9
Q

What comprises the hard palate?

A

The maxilla and the palatine bones

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10
Q

What are the two muscles found in the oral cavity?

A

The palatoglossus- forms the palatoglossal (anterior) arch, and the palatogpharyngeus which forms the palatopharyngeal or the posterior arch

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11
Q

What are the roles of the muscles of the soft palate?

A

Tense and elevate soft palate during swallowing and yawning

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12
Q

What are the innervation of the muscles of the soft palate?

A

The pharyngeal branch of the vagus nerve

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13
Q

What happens if the pharyngeal branch of the vagus nerve is damaged?

A

Pulls ulva away from the side of the affected nerve

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14
Q

What are the nerves that are involved in the gag reflex?

A

The afferent limb is the glossopharyngeal nerve and the efferent limb is the vagus nerve- both important in preventing choking

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15
Q

What is the sensory supply to the teeth?

A

The lower jaw is supplied by the inferior alevolar nerve tat is a branch of CNV3

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16
Q

Name the extrinsic muscles of the tongue?

A

The genioglossus, the hyoglossus, the styloglossus and the palatoglossus

17
Q

What is the role of the extrnisic muscles of the tongue?

A

Allow the tongue to change positions and help anchor tongue to the hyoid bone and the mandible

18
Q

What is the role of the intrinsic muscles of tongue?

A

Help the tongue to change shape, with a action based in the direction which the fibres run in

19
Q

Name some of the intrinsic muscles of the tongue?

A

The superior longituindal, the vertical, tranverse and inferior longitudinal

20
Q

What is the normal motor innervation of the tonuge?

A

Hypoglossal nerve

21
Q

Where does the tongue deviate in a damage to the innervation of the muscles of the tongue?

A

The tongue deviates towards the side of the lesion

22
Q

What is the duct that the partoid gland opens into?

A

Stensons duct

23
Q

What is the duct theat the submandibular gland opens into?

A

Whartons duct

24
Q

Which of the glands opens via multiple ducts?

A

The sublingual gland

25
Q

What are savliary glnad stones made of?

A

Usually calcium based

26
Q

Which is the most commonly affected gland for savlivary stones and why?

A

The submandibular duct, and produces the salvia that is comparitvely thicker than the partoid gland

27
Q

How would a salviary gland stone present?

A

As pain or swelling of the affected gland at meal times

28
Q

What are the tonsils that you would find in the amouth (top to bottom)

A

Adenoids, the tubal tonsil, the palatine tonsil and the lingual tonsil

29
Q

What are some of the common viral causes of tonsilitis?

A

Adenovrisus and a rhinovirsus

30
Q

What are some of the features of bacterial tonsilitis?

A

Beta haemolytic strep, accompanied by the cervical lympadenopahty, fever and pus

31
Q

What are some of the features of tonsilitis?

A

The palatine tonsil, sore theart, and adenophyagia and dysphagia if severe

32
Q

What is the peritonislar absecces?

A

A severe complication of bacterial tonsilitis that is usually caused by strep pyogenes

33
Q

What are some of the key syytmptoms of a peritonsilar abscess or a qunisy?

A

Often unilateral, and the ulva deviates away from the lesion, and patients typically present as systematically unwell with trismus or a hot ptoato voice

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