The Oral Cavity

Question 1

What cositutes the roof of the oral cavity?

Answer 1

The hard palate and the soft palate

Question 2

What creates the floor of the oral cavity?

Answer 2

The tongue and other soft tissues

Question 3

What creates the lateral walls of the oral cavity?

Answer 3

The cheeks

Question 4

What is the anterior boundary of the oral cavity?

Answer 4

The oral fissure

Question 5

What is the posterior boundary of the oral cavity?

Answer 5

The oropharyngeal isthmus

Question 6

What is the oral vestibule?

Answer 6

The space between the cheeks and the teeth

Question 7

What is the oral cavity proper?

Answer 7

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

Question 8

What are the two arches of the oral cavity?

Answer 8

The anterior or palatoglossal arch

The posterior or the palatopharyngeal arch

Question 9

What comprises the hard palate?

Answer 9

The maxilla and the palatine bones

Question 10

What are the two muscles found in the oral cavity?

Answer 10

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

Question 11

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

Answer 11

Tense and elevate soft palate during swallowing and yawning

Question 12

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

Answer 12

The pharyngeal branch of the vagus nerve

Question 13

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

Answer 13

Pulls ulva away from the side of the affected nerve

Question 14

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

Answer 14

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

Question 15

What is the sensory supply to the teeth?

Answer 15

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

Question 16

Name the extrinsic muscles of the tongue?

Answer 16

The genioglossus, the hyoglossus, the styloglossus and the palatoglossus

Question 17

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

Answer 17

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

Question 18

What is the role of the intrinsic muscles of tongue?

Answer 18

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

Question 19

Name some of the intrinsic muscles of the tongue?

Answer 19

The superior longituindal, the vertical, tranverse and inferior longitudinal

Question 20

What is the normal motor innervation of the tonuge?

Answer 20

Hypoglossal nerve

Question 21

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

Answer 21

The tongue deviates towards the side of the lesion

Question 22

What is the duct that the partoid gland opens into?

Answer 22

Stensons duct

Question 23

What is the duct theat the submandibular gland opens into?

Answer 23

Whartons duct

Question 24

Which of the glands opens via multiple ducts?

Answer 24

The sublingual gland

Question 25

What are savliary glnad stones made of?

Answer 25

Usually calcium based

Question 26

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

Answer 26

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

Question 27

How would a salviary gland stone present?

Answer 27

As pain or swelling of the affected gland at meal times

Question 28

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

Answer 28

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

Question 29

What are some of the common viral causes of tonsilitis?

Answer 29

Adenovrisus and a rhinovirsus

Question 30

What are some of the features of bacterial tonsilitis?

Answer 30

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

Question 31

What are some of the features of tonsilitis?

Answer 31

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

Question 32

What is the peritonislar absecces?

Answer 32

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

Question 33

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

Answer 33

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