upper esophageal sphincter

(anatomy) The sphincter situated at the upper part of the esophagus.

Japanese Meaning

上部食道括約筋 - 食道の上部に位置する括約筋。

During the swallowing study, the radiologist noted delayed relaxation of the upper esophageal sphincter.

嚥下検査中、放射線科医は上部食道括約筋の弛緩遅延を指摘した。

Sense（1）

(anatomy) The sphincter situated at the upper part of the esophagus.

upper esophageal sphincters

（ plural ）