oral cavity Flashcards Preview

gross anatomy 2 palmer > oral cavity > Flashcards

Flashcards in oral cavity Deck (21)
Loading flashcards...
1
Q

what are the boundaries of the oral cavity?

A

roof- palate
floor- tongue and oral mucosa
anterior and lateral-lips and cheeks
posterior- oropharyngeal isthmus

2
Q

what are the 2 divisions of the oral cavity?

A

oral vestibule

oral cavity proper

3
Q

what is the portion of the oral cavity that lies between the lips and gums or cheek and gums?

A

oral vestibule

4
Q

what opens into the oral vestibule?

A

labial glands

parotid duct

5
Q

which portion of the oral cavity lies internal to the tooth rows?

A

oral cavity proper

6
Q

the lips contain which muscle and gland?

A

orbicularis oris muscle and labial glands

7
Q

the cheeks contain which muscle and glands?

A

buccinator muscle and buccal glands

8
Q

the hard palate forms which part of the palate?

A

anterior 2/3

9
Q

the soft palate forms which part of the palate?

A

posterior 1/3

10
Q

the hard palate consists of what 2 structures?

A

palatine process of maxilla- anteriorly

horizontal plate of palatine bone- posteriorly

11
Q

what are the 3 foramina of the hard palate?

A

incisive foramen
greater palatine foramen
lesser palatine foramen

12
Q

what is the hard palate covered by?

A

mucoperiosteum

13
Q

the mucoperiosteum presents a palatine raphe which ends?

A

anteriorly in the incisive papilla

14
Q

which structure extends laterally within the mucoperiosteum and aids in gripping food against the tongue during mastication?

A

transverse palatine folds

15
Q

when is the soft palate elevated?

A

during swallowing to close the opening between the nasopharynx and oropharynx

16
Q

what are the 2 lateral arches of the soft palate?

A

palatoglossal arch
palatopharyngeal arch

both contain a fold and a muscle

17
Q

where does the tonsillar fossa lie and what does it contain?

A

lies between the palatoglossal and palatopharyngeal arches and contains the palatine tonsil

18
Q

what is the innervation of the hard palate?

A

greater palatine and nasopalatine nerves

19
Q

what is the innervation of the soft palate?

A

lesser palatine nerve

20
Q

what is the blood supply to the hard palate?

A

greater palatine artery

21
Q

what is the blood supply to the soft palate?

A

lesser palatine and facial arteries