Pharynx Flashcards
what is the circular layer of pharyngeal muscles composed of
3 bilaterally paired constrictor, skeletal muscles
where do the pharyngeal constrictors insert
onto its contralateral pair to form a midline raphe
where does the superior constrictor muscle attach to
the pterygoid plate and mandible
where does the middle constrictor attach to
via the raphe to the greater and lesser horns of the hyoid
where does the inferior constrictor attach to
the thyroid and cricoid cartilages
what is the inner longitudinal layer of pharyngeal muscles composed of
3 paired vertical, skeletal muscles
what are the 3 inner longitudinal pharyngeal muscles
stylopharyngeus, salpingopharyngeus and palatopharyngeus
what do the inner longitudinal pharyngeal muscles do
elevate the larynx and shorten the pharynx
where do the inner longitudinal pharyngeal muscles insert
onto the posterior border of the thyroid cartilage
innervations of the inner longitudinal pharyngeal muscles
CN X, except stylopharyngeus - CN IX
where does the pharyngeal space allow communication between
lower neck and base of skull, structures leave medially
where might infection of the retropharyngeal space spread
mediastinum
where does the sympathetic trunk run in relation to the pharyngeal constrictor muscles
lateral edge
what major vessel and nerve run lateral to the sympathetic trunk
carotid and vagus
what ganglion is in the sympathetic trunk
superior cervical
