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During exercise or during respiratory distress, the mouth can be used as an additional opening of the respiratory system and then the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]] also becomes an air-way.
 
During exercise or during respiratory distress, the mouth can be used as an additional opening of the respiratory system and then the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]] also becomes an air-way.
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The pharynx can be split into different regions- the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]], oesophageal/laryngeal pharynx and the [[Nasopharynx - Anatomy & Physiology|nasal pharynx]]
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The pharynx can be split into different regions- the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]], [[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal pharynx]] (sometimes referred to as the oesophageal pharynx) and the [[Nasopharynx - Anatomy & Physiology|nasopharynx]]
    
==Structure==
 
==Structure==
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*Caudal and dorsal to the laryngeal opening is the opening into the [[Oesophagus - Anatomy & Physiology|oesophagus]]
 
*Caudal and dorsal to the laryngeal opening is the opening into the [[Oesophagus - Anatomy & Physiology|oesophagus]]
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*In the dorsal region of the [[Nasopharynx - Anatomy & Physiology|nasal pharynx]] there are paired openings into the Auditory (Eustacian) Tubes
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*In the dorsal region of the [[Nasopharynx - Anatomy & Physiology|nasopharynx]] there are paired openings into the Auditory (Eustacian) Tubes
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*The lining of the middle ear cavity and auditory tube is continuous with that of the [[Nasopharynx - Anatomy & Physiology|nasal pharynx]]
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*The lining of the middle ear cavity and auditory tube is continuous with that of the [[Nasopharynx - Anatomy & Physiology|nasopharynx]]
    
*Walls are muscular
 
*Walls are muscular
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*During [[Deglutition|swallowing]] the [[Soft Palate - Anatomy & Physiology|soft palate]] is raised which divided the pharynx into dorsal and ventral sections
 
*During [[Deglutition|swallowing]] the [[Soft Palate - Anatomy & Physiology|soft palate]] is raised which divided the pharynx into dorsal and ventral sections
 
**Laterally, two pairs of palatopharyngeal arches are present from the [[Soft Palate - Anatomy & Physiology|soft palate]] to the [[Oesophagus - Anatomy & Physiology|oesophagus]]
 
**Laterally, two pairs of palatopharyngeal arches are present from the [[Soft Palate - Anatomy & Physiology|soft palate]] to the [[Oesophagus - Anatomy & Physiology|oesophagus]]
**The dorsal compartment is the [[Nasopharynx - Anatomy & Physiology|nasal pharynx]]
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**The dorsal compartment is the [[Nasopharynx - Anatomy & Physiology|nasopharynx]]
 
**The rostral compartment is the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]]
 
**The rostral compartment is the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]]
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'''Canine'''
 
'''Canine'''
*Single duct connects [[Nasopharynx - Anatomy & Physiology|nasal pharynx]] to the nasal cavity
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*Single duct connects [[Nasopharynx - Anatomy & Physiology|nasopharynx]] to the nasal cavity
    
*Tonsils are a compact mass which point away from the lumen of the pharynx
 
*Tonsils are a compact mass which point away from the lumen of the pharynx
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[[Nasopharynx - Anatomy & Physiology]]
 
[[Nasopharynx - Anatomy & Physiology]]
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[[Larynx - Anatomy & Physiology#Laryngeal Pharynx|laryngeal pharynx]]
    
<big><center>[[Musculoskeletal System - Anatomy & Physiology|'''BACK TO MUSCULOSKELETAL ANATOMY AND PHYSIOLOGY''']]</center></big>
 
<big><center>[[Musculoskeletal System - Anatomy & Physiology|'''BACK TO MUSCULOSKELETAL ANATOMY AND PHYSIOLOGY''']]</center></big>
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