Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Publish with us
Iliac Fascia
Connective Tissue

Iliac Fascia

Fascia iliaca

Read more


The iliac fascia covers the iliacus muscle. It forms the epimysium of the iliac muscle. The epimysium is a well-defined layer of dense irregular connective tissue, which completely envelopes the muscle belly. It consists primarily of type I collagen fibers, which are tightly arranged to form a relatively strong fibrous covering of the muscle (Standring, 2016). Blood vessels travel through this collagenous sheath around the whole skeletal muscle, providing the skeletal muscle with blood supply. Nerves travel through the epimysium around the muscle, thus, innervating it.

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free
Related parts of the anatomy

Anatomical Relations

The iliac fascia attaches to the whole length of the inner lip of the iliac crest along the margin of the iliacus muscle, superiorly and laterally. Medially, it is attached to the periosteum of the pelvis. Posteromedially, it merges with the anterior lamina of the thoracolumbar fascia which covers the quadratus lumborum. Distally, the iliac fascia merges with the psoas fascia to form the iliopsoas fascia, which continues into the pelvis and thigh to merge with the fascia lata.


Iliac fascia covers and protects the underlying iliac muscle. The Femoral sheath is formed by an inferior prolongation of the iliopsoas and transversalis fascia superiorly. The iliopectineal ligament, a deep thickened band of the Iliopsoas fascia divides the retroinguinal space is divided into the muscular and vascular compartments.

List of Clinical Correlates

—Fascial release technique for the entrapment of the genitofemoral nerve


Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy