psoas minor muscle

(redirected from musculus psoas minor)

pso·as mi·nor mus·cle

(sō'as mī'nŏr mŭs'ĕl)
An inconstant muscle, absent in about 40%; origin, bodies of twelfth thoracic and first lumbar vertebrae and disc between them; insertion, iliopubic eminence through iliopectineal arch (iliac fascia); action, assists in flexion of lumbar spine; nerve supply, lumbar plexus.
Synonym(s): musculus psoas minor, smaller psoas muscle.
References in periodicals archive ?
Active isotonic and isometric strengthening exercises were prescribed to strengthen the frontal abdominal muscles (musculus obliquus externus abdominis, musculus obliquus internus abdominis, musculus rectus abdominis), deep abdominal muscles (musculus psoas major, musculus psoas minor, musculus iliacus, musculus quadratum lumbarum), and back muscles (musculi dorsi, musculus erector spinae, musculi transverso-spinales, musculi inter-spinales, musculi intertransversarii).

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