上じょう後こう鋸きょ筋きん

noun

serratus posterior superior muscle

Anatomical term for a thin, quadrilateral muscle in the upper back that elevates the ribs during inspiration.

• 上じょう後こう鋸きょ筋きんは、第だい二にから第だい五ご肋ろっ骨こつの挙きょ上じょうに関かん与よする。

  The serratus posterior superior muscle is involved in elevating the second to fifth ribs.