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Supraglottic Muscles

AS&RM

QuestionAnswer
What is another name for the inferior Pharyngeal constrictor? the upper esophageal sphincter (UES)
What is the Inferior Pharyngeal Constrictor? Largest Pharyngeal muscle, fibers blend with the esophagus to form the cricopharyngeus muscle
What is the Middle Pharyngeal Constrictor? above the inferior, smaller than inferior, fibers connect to pharyngeal raphe
What is the superior Pharyngeal Constrictor? smallest constrictor, fibers connect to pharyngeal raphe
How does the Medial Pharyngeal Raphe course? from the basilar portion of the occipital bone upwards
What is the function of the medial Pharyngeal Raphe? serves as attachment points for the pharyngeal constrictors
What is the ventricle of morgagni? the space at the top of the pharynx where constrictor muscle fibers do NOT reach (why the space exists)
What is the overall function of the constrictor muscles? sequentially contract to move bolus to esophagus
What is peristalsis The function of constrictors, a wave-like contraction to move the bolus to esophagus
What is the course of the stylopharyngeus? originates at styloid process of temporal bone, inferior course along pharynx wall to blend in with lower part of pharynx, some fibers attach to superior horn of thyroid cartilage
What is the function of the stylopharyngeus? dilates the pharynx and elevates the pharynx and larynx during swallowing
Where is the salpingopharyngeus muscle located? in the salpingopharyngeal fold
What is the purpose of the salpingopharyngeus muscle? a weak muscle with little significance, do not know its purpose, study showed some Japanese men did not have it
Where is the palatopharyngeus muscle located? in the posterior faucial pillar
What is the course of the palatopharyngeus muscle? from the palate to the side of the pharynx
What is the collective function of the pharyngeal muscle? peristalsis, change shape of larynx (a little, resonance changes), close velopharyngeal port, posterior wall may move during passvant's ridge
What is passavant's ridge? a projection/extra fold of tissue found in velopharynx, helps with velopharyngeal closure, normal
How long is the eustachain tube? 35-38mm
What is another name for the eustachian tube? auditory tube
What is the course of the eustachian tube? inferior, anterior, and medial from middle ear
What is the function of the eustachian tube? joints middle ear cavity to nasopharynx for drainage
What are the parts of the eustachian tube? osseous, cartilaginous, isthmus, and membranous portion
What is the osseous of the eustachian tube? the bony part, more towards the middle ear
What is the cartilaginous part of the eustachian tube? portion leading to nasopharynx
What is the isthmus of the eustachian tube? joints together the osseous and cartilaginous parts, not a space, just the junction
What is the membranous part of the eustachian tube? the most flexible part
Created by: hrshook0104
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