Difference between revisions of "Oral Cavity Overview - Anatomy & Physiology"
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| Line 9: | Line 9: | ||
==Anatomical Boundaries== | ==Anatomical Boundaries== | ||
| − | *Rostrally by lips | + | *Rostrally by [[Lips - Anatomy & Physiology|lips]] |
*Caudally by pharynx at the level of the palatoglossal arches | *Caudally by pharynx at the level of the palatoglossal arches | ||
| Line 15: | Line 15: | ||
'''Outer Vestibule''' | '''Outer Vestibule''' | ||
| − | *Teeth and jaw margins medially | + | *[[Tooth Anatomy - Anatomy & Physiology|Teeth]] and jaw margins medially |
*[[Lips - Anatomy & Physiology|Lips]] and [[Cheeks - Anatomy & Physiology|cheeks]] laterally | *[[Lips - Anatomy & Physiology|Lips]] and [[Cheeks - Anatomy & Physiology|cheeks]] laterally | ||
| Line 27: | Line 27: | ||
*Palate dorsally | *Palate dorsally | ||
| − | *Teeth, gums and jaw margins laterally | + | *[[Tooth Anatomy - Anatomy & Physiology|Teeth]], gums and jaw margins laterally |
| − | *Tongue ventrally | + | *[[Oral Cavity - Tongue - Anatomy & Physiology|Tongue]] ventrally |
| − | *Size altered by raising or lowering the | + | *Size altered by raising or lowering the [[Oral Cavity - Tongue - Anatomy & Physiology|Tongue]] and floor or oral cavity when mouth is closed |
==Histology and Innervation== | ==Histology and Innervation== | ||
Revision as of 09:01, 2 July 2008
Introduction
The oral cavity is the first section of the alimentary tract that recieves food. It provides the digestive functions of prehension, mastication and insalivation and also plays a role in the respiratory system through oral breathing when the nasopharynx is impaired.
The oral cavity or mouth, consists of accessory structures (the salivary glands), projecting structures (the teeth and tongue) and the walls enclosing the oral cavity.
Anatomical Boundaries
- Rostrally by lips
- Caudally by pharynx at the level of the palatoglossal arches
Outer Vestibule
- Teeth and jaw margins medially
- Ramus of the mandible and masseter muscle caudally
Oral Cavity Proper
- Inside the dental arches
- Palate dorsally
- Teeth, gums and jaw margins laterally
- Tongue ventrally
- Size altered by raising or lowering the Tongue and floor or oral cavity when mouth is closed
Histology and Innervation
- Ectoderm
- Trigeminal nerve (CN V)