Oral Cavity Flashcards Preview

Anatomy Written 2 > Oral Cavity > Flashcards

Flashcards in Oral Cavity Deck (14):
1

Mouth

Lips (anteriorly) to oropharyngeal isthmus (posteriorly)
Vestibule
Oral Cavity Proper

2

Oral Cavity Proper - Vestibule

Btw the lips and cheeks externally and the teeth and gums internally
Labial Frenula
Cheeks - Buccinator covered with buccopharyngeal fascia

3

Boundaries of Oral Cavity Proper

Roof = Palate
Floor = Mucous membrane lying over sublingual glands and the mylohyoid
Tongue fills it when mouth is closed

4

Nerve Supply

Sensory - Maxillary and Mandibular divisions of V

5

Teeth

Deciduous and permanent

6

Tongue

Divided into anterior 2/3 (within oral cavity proper) and posterior 1/3 (within oropharynx)

7

Musculature innervation of tongue

Innervated by CN XII (hypo)
Intrinsic
Extrinsic
- Genioglossus, hyoglossus, styloglossus and palatoglossus (CN X)

8

Mucous membrane of tongue

Sulcus terminalis and foramen cecum
Papillae (filiform, fungiform, circumvallate, foliate)

9

Sensory innervation of tongue

1. General sensation
anter 2/3 - Ligual nerve (V3)
post 1/3 - glosso (CN IX)
2. Special sensation
anter 2/3 - chroda tympani (CN VII)
post 1/3 - glosso (CN IX)

10

Arterial Supply of tongue

lingual artery from external carotid artery

11

Salivary Glands innervation

Parasympathetic innervation by facial nerve (CN VII)

12

Salivary Glands

Submandibular Gland
Sublingual Gland

13

Submandibular Gland

Duct opens on either side of lingual frenulum as the Sublingual papilla, named for its location on tongue at floor of mouth

14

Sublingual Gland

Lies in floor of the mouth
Opens into floor of mouth as many ducts