What is included in the origin of the psoas major muscle?

The origin of the psoas major muscle is primarily located on the transverse processes and vertebral bodies of the lumbar spine, specifically from T12 to L5. This position makes it a vital muscle for hip flexion and stabilizing the lumbar spine, as the psoas major connects the lumbar vertebrae to the femur.

The choice detailing the transverse processes and bodies encompasses the anatomical structure required for the psoas major to function effectively, providing crucial support and facilitating movement. The psoas major does not originate from the spinous processes or the pelvic rim, which highlights the importance of recognizing the correct anatomical landmarks for muscle origins in the study of sports massage and anatomy. Understanding these origins can greatly aid in effective assessment and treatment techniques in sports massage therapy.