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Oral Cavity Overview - Anatomy & Physiology (view source)
Revision as of 16:42, 31 August 2014
, 16:42, 31 August 2014→Origin and Innervation
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==Introduction==
==Introduction==
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.
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.
[[Image:Anatomy of the Oral Cavity.jpg|thumb|right|250px|Oral Cavity Anatomy - Copyright Nottingham 2008]]
==Anatomical Boundaries==
==Anatomical Boundaries==
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'''.
'''Outer Vestibule'''
'''Outer Vestibule'''
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.
'''Oral Cavity Proper'''
'''Oral Cavity Proper'''
[[Image:Oral Cavity Cat.jpg|thumb|right|250px|Oral Cavity Cat - Copyright P.Fernandes]]
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.
==Origin and Innervation==
==Histology and Innervation==
The oral cavity originates from ectoderm. It is innervated by the '''trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V]]).
==Links==
{{Template:Learning
|flashcards = [[:Category:Oral Cavity Anatomy & Physiology Flashcards|Oral Cavity anatomy]]<br>[[Oral Cavity Flashcards - Pathology|Oral Cavity pathology]]
|powerpoints = [[Oral Cavity Histology resource|Histology tutorials about the oral cavity]]
}}
[[Oral Cavity - Cavity & Gingiva|Oral Cavity Pathology]]
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[[Category:Oral Cavity - Anatomy & Physiology]]