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Labial mucosaAka: Buccal mucosa, Masticatory Mucosa, Movable Mucosa, Oral Mucosa

See Also
1. Oral Exam
Types
1. Masticatory Mucosa (bears greatest friction)
  1. Appearance
    1. Highly keratinized and firm
    2. Stippled and pale
  2. Covers
    1. Hard Palate
    2. Tooth-bearing Gingiva (abuts)
    3. Dorsal Tongue surface
2. Movable Mucosa (Non-masticatory)
  1. Appearance
    1. Thin, less keratinized than masticatory mucosa
  2. Covers
    1. Lips (abuts)
    2. Buccal mucosa
    3. Floor of mouth
    4. Vestibules
    5. Soft Palate
    6. Peri-tonsillar pillars
    7. Lateral and ventral Tongue
Exam
1. Observe color and texture
2. Palpate for Nodules
Normal Findings and variants
1. Linea Alba of Buccal Mucosa
2. Leukoedema
3. Parotid Papilla (Stensen's Duct opening)
4. Ectopic Sebaceous Glands (Fordyce's granules)
Pathologic Findings
1. Lichen Planus of Buccal Mucosa
2. Leukoplakia
3. Oral Ulcers
  1. Traumatic
  2. Aphthous Ulcer (Canker sore)
  3. Herpes Gingivostomatitis

Structure of mucous membrane of lip (C0226927)
Definition (NCI)	The inner lining of the lips.
Definition (NCI)	The lining of the fleshy folds surrounding the mouth. It is comprised of the epithelium, basement membrane, lamina propria mucosae, and lamina muscularis mucosae.
Concepts	Body Part, Organ, or Organ Component (T023)
English	Inner aspect of lip, Labial mucosa, Mucosa of lip, Mucosa of the Lip, Mucous membrane of lip, Structure of mucous membrane of lip
Spanish	cara interna del labio, estructura de la mucosa labial, membrana mucosa del labio, mucosa labial
Parent Concepts	Mucous Membrane (C0026724), Lip structure (C0023759), Oral mucous membrane structure (C0026639)
Sources	MTH, NCI, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Buccal mucosa (C1578559)
Definition (NCI)	(BUK-ul myoo-KO-sa) The inner lining of the cheeks and lips.
Definition (MSH)	Lining of the inner surface of the cheeks.
Concepts	Body Part, Organ, or Organ Component (T023)
MSH	D009061
English	Buccal mucosa, Cheek mucosa, Internal cheek, Intraoral surface of cheek
Spanish	carrillo, mucosa del carrillo
Parent Concepts	Mucous Membrane (C0026724), Cheek structure (C0007966), Oral mucous membrane structure (C0026639), Subdivision of mucosa of mouth (C0930714)
Sources	CSP, LNC, MSH, MTH, NCI, SCTSPA, SNOMEDCT, UWDA Derived from the NIH UMLS (Unified Medical Language System)