Difference between revisions of "Oral Cavity Overview - Anatomy & Physiology"

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<big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big>
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<big><center>[[Oral Cavity - Cavity - Anatomy & Physiology|'''BACK TO ORAL CAVITY - ANATOMY AND PHYSIOLOGY]]</center></big>
  
 
==Introduction==
 
==Introduction==
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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 respiratory system through oral breathing when the nasopharynx is impaired.
  
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The oral cavity is the first section of the alimentary tract that receives food. It provides the digestive functions of prehension, [[Mastication|mastication]] and in salivation and also plays a role in the [[Cardiorespiratory System Overview - Anatomy & Physiology|respiratory system]] through oral breathing when the nasopharynx is impaired. The oral cavity or mouth, consists of accessory structures (the [[Salivary Glands - Anatomy & Physiology|salivary glands]]), projecting structures, (the [[:Category:Teeth - Anatomy & Physiology|teeth]] and the [[Tongue - Anatomy & Physiology|tongue]]) and the walls enclosing the oral cavity.
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The oral cavity or mouth, consists of accessory structures (the [[Oral Cavity - Salivary Glands - Anatomy & Physiology|salivary glands]]), projecting structures (the [[Tooth Anatomy - Anatomy & Physiology|teeth]] and [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]]) and the walls enclosing the oral cavity.
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[[Image:Anatomy of the Oral Cavity.jpg|thumb|right|250px|Oral Cavity Anatomy - Copyright Nottingham 2008]]
 
  
 
==Anatomical Boundaries==
 
==Anatomical Boundaries==
  
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The oral cavity is bordered rostrally by the [[Lips|lips]] and caudally by the [[Pharynx - Anatomy & Physiology|pharynx]] at the level of the '''palatoglossal arches'''.
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*Rostrally by lips
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*Caudally by pharynx at the level of the palatoglossal arches
  
 
'''Outer Vestibule'''  
 
'''Outer Vestibule'''  
  
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The [[:Category:Teeth - Anatomy & Physiology|teeth]] and jaw margins medially and the [[Lips|lips]] and [[Cheeks|cheeks]] laterally. The ramus of the [[Skull and Facial Muscles - Anatomy & Physiology#Mandible (mandibula)|mandible]] and masseter muscle caudally.
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*Teeth and jaw margins medially  
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*[[Lips - Anatomy & Physiology|Lips]] and [[Cheeks - Anatomy & Physiology|cheeks]] laterally  
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*Ramus of the mandible and masseter muscle caudally
  
 
'''Oral Cavity Proper'''
 
'''Oral Cavity Proper'''
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[[Image:Oral Cavity Cat.jpg|thumb|right|250px|Oral Cavity Cat - Copyright P.Fernandes]]
 
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Inside the dental arches, the palate borders dorsally and the [[:Category:Teeth - Anatomy & Physiology|teeth]], gums and jaw margins laterally. The [[Tongue - Anatomy & Physiology|tongue]] margins ventrally. The size can be altered by raising or lowering the [[Tongue - Anatomy & Physiology|tongue]] and the floor of the oral cavity when the mouth is closed.
 
  
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==Origin and Innervation==
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*Inside the dental arches
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*Palate dorsally
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*Teeth, gums and jaw margins laterally 
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*Tongue ventrally
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*Size altered by raising or lowering the tongue and floor or oral cavity when mouth is closed
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==Histology and Innervation==
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*Ectoderm
  
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The oral cavity originates from ectoderm. It is innervated by the '''trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V]]).
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*Trigeminal nerve (CN V)
  
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{{Template:Learning
 
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|flashcards = [[:Category:Oral Cavity Anatomy & Physiology Flashcards|Oral Cavity anatomy]]<br>[[Oral Cavity Flashcards - Pathology|Oral Cavity pathology]]
 
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|powerpoints = [[Oral Cavity Histology resource|Histology tutorials about the oral cavity]]
 
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}}
 
  
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==Webinars==
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==Links==
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<rss max="10" highlight="none">https://www.thewebinarvet.com/dentistry/webinars/feed</rss>
 
  
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[[Category:Oral Cavity - Anatomy & Physiology]]
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[[Oral Cavity - Cavity & Gingiva|Oral Cavity Pathology]]

Revision as of 08:58, 2 July 2008

BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY
BACK TO ORAL CAVITY - ANATOMY AND PHYSIOLOGY

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)


Links

Oral Cavity Pathology

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