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.
IM for anat & site of dis; NIM in studies on muscle tissue & fibers; infection
Other names Psoas Muscle; Muscles, Psoas; Muscle, Psoas