Part of the digestive tube which connects to the mouth (oropharynx), the nasal cavity (nasophaynx) and the larynx (laryngopharynx). It is a musculomembranous tube extending for 12-14 cm in length and from the base of skull to the level of C6 vertebra. It related in front directly to the nasal cavity and behind it is related to loose areolar tissue. Superiorly it is related to the posterior part of body of sphenoid bone and basilar occipital bone. It is continuous with the esophagus at level of C6 vertebra.

 It contains the following
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BONES: Cervical vertebrae

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Muscles: Superior constrictor muscle of pharynx, middle constrictor muscle of pharynx, inferior constrictor muscle of pharynx, salpingopharyngeus, stylopharyngeus

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Arteries: Lingual artery, ascending palatine artery, ascending pharyngeal artery, branch of maxillary artery

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Veins: Pharyngeal veins.  dorsal lingual vein, tributaries of maxillary vein which all drain into the facial vein

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Nerves: Pharyngeal plexus

Others : Posterior pillars of fauces. It functions primarily in deglutition.

 

 

 

 

 

 

 

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Electronic School of Medicine
Creator: Oluwole Ogunranti

 
Mouth and pharynx- 3D rotation

1 cricoid cartilage and larynx 2 laryngopharynx 3 nasopharynx 4 oropharynx 5 sphenoidal air sinus 6 mouth


1 nasopharynx 2 oropharynx 3 laryngopharynx 4 mouth cavity

 

 

 

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