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Lateral view of the wall of the pharynx.

Wall of the Pharynx

Lateral view of the wall of the pharynx.

"The circular muscle of the mouth (1) and the buccinator or trumpeter's muscle (2) help the tongue to push the food back to the upper margin of the gullet, where it is seized upon by the three constrictor muscles (3, 4 and 5) of the pharynx, and pushed down the gullet or esophagus, which is represented as being cut off at 6." — Richardson, 1906

Swallowing Muscles

"The circular muscle of the mouth (1) and the buccinator or trumpeter's muscle (2) help the tongue to…