Anatomy Of Oropharynx

The oropharynx includes the following. Side and back walls of the throat.

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It is divided by the glossopalatine arch from the laryngeal pharynx.

Anatomy of oropharynx. The narrow laryngopharynx includes the region of the pharynx lying between the hyoid bone and the entrance to the esophagus. The oropharynx is innervated by the glossopharyngeal nerve. The oropharynx lies behind the oral cavity extending from the uvula to the level of the hyoid bone.

The oropharynx includes the base of the tongue back 13 the soft palate at the back of the roof of the mouth the tonsils and the back of the throat. Like the oropharynx the laryngopharynx is lined with a stratified squamous epithelium that resists abrasion chemicals and pathogens. The oropharynx forms part of the pharynx being the continuation of the oral cavity and nasopharynx superiorly and the larynx and hypopharynx inferiorly.

Anatomy of the oropharynx the oropharynx consists of the pharyngeal wall between the nasopharynx and the pharyngoepiglottic fold the soft palate the tonsillar region and the tongue base see fig. The oropharynx has a stratified squamous epithelium. Vertical plane defined by the circumvallate papillae anterior tonsillar pillars and border of hard and soft palate.

The lamina propria contains aggregates of lymphoid tissue called tonsils in several parts of the oropharynx. It opens anteriorly through the isthmus faucium into the mouth while in its lateral wall between the palatoglossal arch and the palatopharyngeal arch is the palatine tonsil. The oropharynx is behind the oral cavity below the soft palate and above the epiglottis.

It is keratinised in ruminants. The larynx is the upper end of the lower airway. 24 the anterior margin of the oropharynx is formed by a plane that joins the posterior border of the soft palate the anterior tonsillar pillars and the circumvallate papillae.

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