Medical Dictionary
psoas major
noun
Medical Definition of PSOAS MAJOR
: the larger of the two psoas muscles that arises from the anterolateral surfaces of the lumbar vertebrae, passes beneath the inguinal ligament to insert with the iliacus into the lesser trochanter of the femur, and serves especially to flex the thigh
Illustration of PSOAS MAJOR
Seen & Heard
What made you want to look up psoas major? Please tell us where you read or heard it (including the quote, if possible).