UES muscles Flashcards

1
Q

thyropharyngeus

A

superior portion of the inferior pharyngeal constrictor, relaxes during swallowing, fibers run oblique from midline pharynx to thyroid cart, motor and sensory innervation from Pharyngeal Plexus (pharyngeal branch of CN X vagus and CN IX glossopharyngeal)

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2
Q

cricopharyngeus

A

primary muscle of the UES, inferior portion of the inferior pharyngeal constrictor, relaxes during swallowing, fibers run horizontally and slightly kidney-shaped, motor and sensory innervation from Pharyngeal Plexus (pharyngeal branch of CN X vagus and CN IX glossopharyngeal)

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3
Q

superior esophagus

A

circular fibers, motor and sensory innervation from Pharyngeal Plexus (pharyngeal branch of CN X vagus and CN IX glossopharyngeal)

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