Identify the subdivisions of the pharynx and the muscles of the pharyngeal wall.
- (ON BOTH SIDES) Identify the nasal pharynx, oral pharynx and laryngeal pharynx. (G 8.29B;N 64;Gl 44.27)
- (ON BOTH SIDES) Start at the midline (the sagittal saw cut) and blunt dissect in the retropharyngeal space. Separate the pharyngeal wall from the prevertebral fascia. (G 8.2A;N 64;Gl 45.30)
- (ON BOTH SIDES) Identify and attempt to clean the superior, middle and inferior constrictors. (G 8.27B;N 67;Gl 44.29) Use the greater horn of the hyoid bone to assist you in identifying the level of the middle constrictor. The superior constrictor is continuous with the buccinator muscle.
- (ON BOTH SIDES) Using the midline approach, isolate and identify the stylopharyngeus muscle. Blunt dissect the posterior-lateral aspect of the external pharyngeal wall approximately 2 cm superior to the greater horn of the hyoid bone. (G 8.27B;N 67;Gl 44.30) Identify the glossopharyngeal nerve adjacent to the stylopharyngeus muscle. Attempt to identify the pharyngeal branches of the vagus nerve.
