Difference between revisions of "Oral Cavity Overview - Anatomy & Physiology"
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The oral cavity is the first section of the alimentary tract that recieves food. It provides the digestive functions of prehension, [[Mastication|mastication]] and insalivation and also plays a role in the [[Cardiorespiratory System - Anatomy & Physiology|respiratory system]] through oral breathing when the [[Nasopharynx - Anatomy & Physiology|nasopharynx]] is impaired. | The oral cavity is the first section of the alimentary tract that recieves food. It provides the digestive functions of prehension, [[Mastication|mastication]] and insalivation and also plays a role in the [[Cardiorespiratory System - Anatomy & Physiology|respiratory system]] through oral breathing when the [[Nasopharynx - Anatomy & Physiology|nasopharynx]] is impaired. | ||
| − | The oral cavity or mouth, consists of accessory structures (the [[Oral Cavity - Salivary Glands - Anatomy & Physiology|salivary glands]]), projecting structures (the [[ | + | The oral cavity or mouth, consists of accessory structures (the [[Oral Cavity - Salivary Glands - Anatomy & Physiology|salivary glands]]), projecting structures (the [[:Category:Teeth - Anatomy & Physiology|teeth]] and [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]]) and the walls enclosing the oral cavity. |
[[Image:Anatomy of the Oral Cavity.jpg|thumb|right|150px|Oral Cavity Anatomy - Copyright Nottingham 2008]] | [[Image:Anatomy of the Oral Cavity.jpg|thumb|right|150px|Oral Cavity Anatomy - Copyright Nottingham 2008]] | ||
==Anatomical Boundaries== | ==Anatomical Boundaries== | ||
Revision as of 15:26, 3 September 2010
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)