Flashcards in 10.2 The Pharynx and Disorders of the Pharynx Deck (34)
Where is the nasopharynx?
Between base of skull and start of soft palate
What epithelium is found in the nasopharynx?
Pseudostratified ciliated columnar epithelium
What does the nasopharynx contain?
Adenoids and eustachian tube orifice
Where is the oropharynx?
Behind oral cavity. From soft palate to superior border of epiglottis
What epithelium is found in the oropharynx?
Stratifies squamous epithelium
What does the oropharynx contain?
What are the palatine tonsils?
Lymphoid tissue covered in squamous epithelium and encapsulated in large crypts.
Where are the palatine tonsils found within the oropharynx?
Between the palatoglossal arch (anterior) and palatopharyngeal (posterior) arch
What are the 4 types of lymph tissue which make up Waldeyer's ring?
Where is the epiglottis?
Between superior border of epiglottis and inferior border of cricoid cartilage
What type of epithelia is found in the laryngopharynx?
Stratified squamous epithelium
What does the laryngopharynx open up into posteriorly?
What does the laryngopharynx open up into anteriorly?
What nerve provides sensory innervation to the nasopharynx?
What nerve provides sensory innervation to the oropharynx?
What nerve provides sensory innervation to the laryngopharynx?
Which vessels supply the pharynx?
What vessels drain the pharynx?
Pharyngeal venous plexus
Name the 3 circular muscles around the pharynx
What nerve innervates the constrictor muscles of the pharynx?
Where do the constrictor muscles attach to posteriorly?
What are the 2 parts of the inferior constrictor?
Name the 3 longitudinal muscles of the pharynx
Where is the pathway of the stylopharyngeus muscle?
Styloid process to pharynx
Where is the pathway of the palatopharyngeus muscle?
Hard palate to pharynx
Where is the pathway of the salpingopharyngeus muscle?
Eustachian tube to pharynx
Which nerve innervates the stylopharyngeus muscle?
Which nerve innervates the salpingopharyngeus and palatopharyngeus muscle?
How is the pharynx involved with swallowing?
Food pushed from oral cavity to oropharynx
Tongue and suprahyoid muscles pull hyoid and larynx up
Soft palate elevates and nasopharynx is sealed off
Superior constrictors contract
Food bolus passes into laryngopharynx using middle and inferior constricters