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Does Hip Flexion Occur?
Does Hip Flexion Occur?
Robert Thorne••7 min read
Contraction of the iliacus
iliacus
The iliacus is a flat, triangular muscle which fills the iliac fossa. It forms the lateral portion of iliopsoas, providing flexion of the thigh and lower limb at the acetabulofemoral joint.
The iliopsoas muscle is a composite muscle formed from the psoas major muscle, and the iliacus muscle. The psoas major originates along the outer surfaces of the vertebral bodies of T12 and L1-L3 and their associated intervertebral discs. The iliacus originates in the iliac fossa of the pelvis.
produces flexion of the hip joint. When the limb is free to move, flexion brings the thigh forward. When the limb is fixed, as it is here, flexion of both hips brings the body upright.
Can the hip do flexion?
The structure of the hip allows a wide range of motion to (and between) the extreme ranges of anterior, posterior, medial, and lateral movement. Raising the leg toward the front is termed flexion; pushing the leg toward the back is termed extension (Figure 2).
What is hip flexion caused by?
Pectineus: The pectineus muscle is a flat, quadrangular muscle that lies at the top of your inner thigh, often referred to as your groin muscle. It's primarily responsible for hip flexion, but it also rotates your thigh and adducts, which means it pulls your legs together when the muscles contract.
