Oral Cavity

Boundary: anterior vs. posterior

epithelium?

connective tissue?

A: lips

P: oral pharyngeal isthmus - circular aperture that gaurds entrance to pharync

stratified squamous mucosa

dense, irregular, and collagenous

Oral Cavity Divisions

vestibules: space between lips & cheeks, external to teeth in occlusion

oral cavity proper

lips: 2 zones

vermillion zone: inside lips

vermillion border: lining of lips

superior lip is bounded laterall by ___________

from the _______ of nose to corner of the mouth

vertical depression in the midline from the nose to the vermillion border is called _________

nasolabial groove

ala (wings)

filtrum (cupid's bow)

inferior to the philtrum is ________, a bump in the

vermillion zone

this is not the same bump at the chin, called

_________________

labial tubercle

mente tubercle

the lower (or ___________) lip has a groove to the chin called ___________

two lips are connected laterall by the __________

the slight depression in the center is known as ________

zone between infeior and superior lip

inferior; labiomental groove

labial commissures

mommissual lip pit

oral fissure

labial frenulum (superior)

connects the gum to the lip

superior, right below nose

Review

Vestibule

Divisions (2)?

Musosal folds

bucacal - lateral, mucobuccal fold

labial - anteior, region of lips, mucolabial fold

vestibular mucosa becomes alveolar mucosa

Vestibule

labial frenulum (2)

parotid gland empties its salivary secretions into the buccal vestibule at a small orifice opposite the second maxillary molar. This opening, which appears elevated in the mucosa _________

upper & lower

parotid papilla (Stenson's duct)

Review

LOOK at PICTURE

Gingiva

gingival margin

specialized area of the gingiva distal to the last molars in both dental arches

free edge, fold of gingiva

retromolar papilla

color of mucosa?

covers alveolar processes of maxillary & mandibular arches

mucogingival junction

pale pink

alveolar mucosa

?

Lower jaw, mucosa, & gingiva

Review Lab #1 Materials

Dorsum of Tongue

describe sulcus terminalis

location ?

V-shaped shallow groove

seperate posterior one-third of tongue from anterior

posterior to circumvallate papillae

sulcus median

the line that runs from sulcus terminalis

toward tip of toungue

medial of toungue

papillae - oral cavity

1. mushroom shaped?

2. rounded top?

3. degenerate & found anterior & posterior

4. slender, highly keratinized

circumvallate/vallete

fungiform

foliate taste buds

filiform

foramen cecum

location in reference to sulcus terminalis

midline pit like structure

posterior to ST

lingual tonsils

irregular bulges in valleculae region

posterior to sulcus terminalis and foramen cecum

musoca - NO papillae

lingual frenulum

LF: from floor of mouth to ventral surface of tongue

that peice of skin that goes from gum to toungue

Wharton's Ducts

ducts for submandibular glands

remember: ducts is just an opening for glands,

in this case salivary gland

Lingual caruncle

middle part of the lingual frenulum, rounded, middle of the lingual frenulum

subligual sulcus

the grooves on the side of the lingual frenulum

what is the frenulum at the upper lip called?

superior frenulum

torus mandibularis

bulging part of the gum at the submandibular area

located on both sides

sublingual fold

sublingual fold is the mucosa that leads to the lingual frenulum

sublingual vein

the veins under your tongue

Palate

soft vs. hard

location

soft: posterior

hard: anterior two thirds

*makes sense since you want the hard part next to the teeths*

Palate

hard

Palatine raphe -midline

palate

soft

covered by?

ends where?

mucous membrane

uvula

Dental Arches

10 to 12 year old patients have what?

mixed dentitionin

ew.

Describe Tooth Development

three reginal divisions of the pharynx

nasopharynx

oropharynx

larygopharynx

Oral Pharynx