Canadian Medical Guide > Anatomy > Musculoskeletal System > Muscles > Muscle, Skeletal > Psoas Muscles Terms and Definitions

Psoas Muscles

Medical Definition:	A powerful flexor of the thigh at the hip joint (psoas major) and a weak flexor of the trunk and lumbar spinal column (psoas minor). Psoas is derived from the Greek "psoa", the plural meaning "muscles of the loin". It is a common site of infection manifesting as abscess (PSOAS ABSCESS). The psoas muscles and their fibers are also used frequently in experiments in muscle physiology.
Guide Notes:	IM for anat & site of dis; NIM in studies on muscle tissue & fibers; infection = probably PSOAS ABSCESS; /growth: coord with MUSCLE DEVELOPMENT; /embryol: coord with MUSCLE DEVELOPMENT if pertinent
Previously Indexed:	Muscles (1968-1991)

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