Pharynx & Larynx Flashcards
How many constrictor muscles are in the Pharynx ?
3
What are the constrictor muscles in the pharynx?
Superior Pharyngeal constrictor
Middle Pharyngeal constrictor
Inferior Pharyngeal constrictor( 2 parts)
What is the space between the soft palate and the posterior pharyngeal wall?
Oropharyngeal isthmus
What are the main features found in the Nasopharynx?
1.Opening of Pharyngotympanic tube( Auditory tube)
2.Pharyngeal recess
3.Pharyngeal tonsil
4.Adenoid tonsil
5.Torus tubarius
Though what structure does the nasopharyngeal cavity opens into the cavity of the oropharynx?
The pharyngeal isthmus
True or False? Pharyngeal tonsils are only present in children and when they enlarge they form the Adenoid tonsils.
TRUE!!
Fill in the blanks. The _________ extends from lower surface of soft palate to upper border of epiglottis(C3)
Oropharynx
Fill in the blanks. The ________ extends from base of skull to upper surface of soft palate (C1 vertebra).
Nasopharynx
True or False? The palatine tonsils are found in the Laryngopharynx?
FALSE!!! It’s found in the Oropharynx
Fill in the blanks. The ________extends from upper border of epiglottis to level of lower border of cricoid cartilage (C6)
Laryngopharynx
What epithelium can be found on the lingual surface of the epiglottis?
Non-keratinized stratified squamous epithelium
What epthithelium can be found on the laryngeal surface?
Pseudostratified columnar ciliated with goblet cells
On what structure, other than the tongue, can taste buds be found?
Epiglottis
What is the innervation of the Epiglottis?
Internal laryngeal nerve ( branch of the superior laryngeal nerve branch of Vagus nerve)
What is the function of the epiglottis?
The function of the epiglottis is to seal the laryngeal inlet during swallowing and so to prevent the aspiration of the food and liquid into the lungs.
What is the origin & insertion of the superior laryngeal constrictor
Origin : Pterygomandibular raphe
Insertion: Pharyngeal raphe and pharyngeal tubercule occipital bone (1 cm anterior to foramen magnum)
Which constrictor muscle of the pharynx has the origin as the Greater horn of hyoid bone and inferior portion of stylohyoid ligament
Insertion : pharyngeal raphe
Middle Pharyngeal constrictor
What are the names of the Inferior constrictor muscles?
Thyropharyngeus: Anterior attachment: oblique line of thyroid cartilage and lateral surface of cricoid cartilage. Post. attachment: pharyngeal raphe
Cricopharyngeus: from one side of cricoid arch to the other. No raphe
Most inferior fibers continuous with esophagus (circular fibers)
True or False? The stylopharyngeous muscle is innervated by the vagus nerve?
FALSE!! It is the ONLY longitudinal muscle innervated by the Glossopharyngeal muscle
Which constrictor muscles are found in the Laryngopharynx?
Middle & Inferior Constrictors
Fill in the blank “_________ constrictor muscle is found in the Oropharynx.”
Superior
