- tetragonum lumbale
- the four-sided space bounded by the four lumbar muscles: the serratus posterior inferior superiorly, the internal oblique inferiorly, the erector spinae internally, and the external oblique externally.
Medical dictionary. 2011.
tetragonum lumbale
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tetragon, tetragonum — Quadrangle; a figure having four sides. [tetra + G. gonia, angle] t. lumbale a quadrangular space bounded laterally by the obliquus externus abdominis muscle, medially by the erector spinae, above by the serratus posterior inferior, and … Medical dictionary
