Regional differences of oral mucosa-1 Flashcards
Buccal mucosa
inside lining of the cheeks; part of the lining mucosa.
Labial mucosa
inside lining of the lips; part of the lining mucosa.
Labial and buccal mucosa is which kind of epithelium
Non-keratinized epithelium
What lamina propria contain (Labial and buccal mucosa)
elastic fibers and collagen fibers giving the irregular and blunt connective tissue papillae the ability to stretch and return to its original shape
Histological features of Labial and Buccal mucosa
Submucosa- contain adipose tissue and minor salivary glands, giving the tissue its compressibility and moisture
Submucosa is firmly attached to underlying muscle, thus preventing the tissue from interfering during mastication
Why is lamina propria pinkish appearance
has an extensive vascular
Histological features of alveolar mucosa
Absent of connective tissue sometimes
minor salivary glands and many elastic fibers and this giving the tissue moisture and increase motility
loosely attached to underlying muscle or bone, increase the ability of tissue to move
Histological features of floor of the mouth and ventral tongue surface
extremely thin non-keratinized epithelium
extensive lamina propria
submucosa consists loose connective tissue with adipose tissue and include submandibular and sublingual salivary glands. Giving the tissue its compressibility and moisture
submucosa loosely attached to underlying bone and muscle, giving the tissue its movability when the attached tongue moves during mastication and speech
PIGMENTATION (attached gingiva)
Have small cytoplasmic granules called melanosomes (store melanin pigment)
they inject this into the neighboring newly formed epithelial cells of the basal layer
Shape of Mucogingival junction
Scalloped junction between pinker attached gingiva and redder alveolar mucosa
Most common sites for Oral cancer
soft palate complex
floor of the mouth
