The pectineus muscle is situated in the anterior and medial aspect of the thigh, contributing to the inner contours of the hip region. It is a relatively small muscle that adds to the overall musculature of the thigh.

Origin:
Originating from the pectineal line of the pubis and the nearby superior ramus, the pectineus takes its starting point from the bony structures of the pelvic girdle.

Insertion:
The muscle inserts into the pectineal line of the femur, specifically on the posterior aspect of the lesser trochanter. This insertion site establishes a connection with the proximal part of the thigh bone.

Function:
Functionally, the pectineus contributes to hip flexion and adduction. It plays a role in drawing the thigh toward the midline of the body and lifting the leg forward. Additionally, the muscle assists in the initiation of hip flexion during activities like walking or climbing stairs. The pectineus is part of the group of muscles that collectively contribute to the complex movements of the hip joint and thigh, showcasing its significance in lower limb biomechanics.

Hip Joint Flexion

Hanging Leg Raise