Difference between revisions of "Oropharynx - Anatomy & Physiology"
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==Introduction== | ==Introduction== | ||
− | The [[Pharynx - Anatomy & Physiology|pharynx]] is the chamber connecting the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]], [[Nasal Cavity - Anatomy & Physiology|nasal cavity]], [[Oesophagus - Anatomy & Physiology|oesophagus]] and [[Larynx - Anatomy & Physiology|larynx]]. The [[Pharynx - Anatomy & Physiology|pharynx]] is divided into the nasopharynx, oropharynx and [[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal pharynx]] which all have different functions, innervation and | + | The [[Pharynx - Anatomy & Physiology|pharynx]] is the chamber connecting the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]], [[Nasal Cavity - Anatomy & Physiology|nasal cavity]], [[Oesophagus - Anatomy & Physiology|oesophagus]] and [[Larynx - Anatomy & Physiology|larynx]]. The [[Pharynx - Anatomy & Physiology|pharynx]] is divided into the [[Nasopharynx - Anatomy & Physiology|nasopharynx]], oropharynx and [[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal pharynx]] which all have different functions, innervation and develope differently. |
− | [[Image:Pharynx Anatomy.jpg|thumb|right| | + | |
+ | The oropharynx is the oral section of the [[Pharynx - Anatomy & Physiology|pharynx]]. | ||
+ | [[Image:Pharynx Anatomy.jpg|thumb|right|150px|Pharynx Labelled - Copyright C.Clarkson and T.F.Fletcher University of Minnesota]] | ||
==Structure and Function== | ==Structure and Function== | ||
− | + | *Last molar rostrally | |
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+ | *[[Epiglottis]] caudally | ||
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+ | *[[Tongue - Anatomy & Physiology|Tongue]] ventrally | ||
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+ | *[[Soft Palate|Soft palate]] dorsally | ||
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+ | *Endoderm | ||
− | + | *Innervated by glossopharyngeal nerve ([[Cranial Nerves - Anatomy & Physiology|CN IX]]) | |
− | + | *Divided by glossopalatine arch from [[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal pharynx]] | |
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==Musculature== | ==Musculature== | ||
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'''Constrictors''' | '''Constrictors''' | ||
− | + | *Hyopharyngeus | |
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+ | *Thyropharyngeus | ||
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+ | *Cricopharyngeus | ||
'''Dilators''' | '''Dilators''' | ||
− | + | *Stylopharyngeus | |
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+ | '''Shorten''' | ||
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+ | *Pterygopharyngeus | ||
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+ | '''Close Pharyngeal Arch''' | ||
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+ | *Palatopharyngeus | ||
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==Innervation== | ==Innervation== | ||
− | Muscles from | + | *Muscles from pharyngeal arch 4 innervated by vagus nerve ([[Cranial Nerves - Anatomy & Physiology|CN X]]) |
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+ | *Stylopharyngeus from pharyngeal arch 3 innervated by glossopharyngeal nerve ([[Cranial Nerves - Anatomy & Physiology|CN IX]]) | ||
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+ | ==[[Oropharynx - Histology|Histology]]== | ||
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+ | ==Test yourself with the Oropharynx flashcards== | ||
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+ | [[Oral Cavity - Anatomy & Physiology - Flashcards#Oropharynx Flashcards|Oropharynx Flashcards]] | ||
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[[Category:Oral Cavity - Anatomy & Physiology]] | [[Category:Oral Cavity - Anatomy & Physiology]] | ||
+ | [[Category:To Do - A&P]] |
Revision as of 13:06, 10 September 2010
Introduction
The pharynx is the chamber connecting the oral cavity, nasal cavity, oesophagus and larynx. The pharynx is divided into the nasopharynx, oropharynx and laryngeal pharynx which all have different functions, innervation and develope differently.
The oropharynx is the oral section of the pharynx.
Structure and Function
- Last molar rostrally
- Epiglottis caudally
- Tongue ventrally
- Soft palate dorsally
- Endoderm
- Innervated by glossopharyngeal nerve (CN IX)
- Divided by glossopalatine arch from laryngeal pharynx
Musculature
Constrictors
- Hyopharyngeus
- Thyropharyngeus
- Cricopharyngeus
Dilators
- Stylopharyngeus
Shorten
- Pterygopharyngeus
Close Pharyngeal Arch
- Palatopharyngeus
Innervation
- Muscles from pharyngeal arch 4 innervated by vagus nerve (CN X)
- Stylopharyngeus from pharyngeal arch 3 innervated by glossopharyngeal nerve (CN IX)