Ala of Sacrum anatomy Ala of sacrum is a large triangular surface either side of sacral base, continuous with iliac fossa (akin to adapted and joined transverse and costal processes elsewhere spine).               Interested in taking our award-winning Pocket Anatomy for a test drive? 

Anatomy Origin: Superior border of scapula medial to suprascapular notch. Insertion: Body of hyoid bone. Key Relations: -Is one of the infrahyoid muscles (sometimes referred to as ‘strap muscles’) lying in the muscular triangle of the neck. -Lateral to sternohyoid. Functions Depresses and fixes the hyoid bone. Supply Nerve Supply: Anterior rami of C1 to

Anatomy Origin: Superior nuchal line of the occipital bone, external occipital protuberance, ligamentum nuchae and spinous processes of C7 to T12. Insertion: Superior fibres: posterior border of the lateral third of the clavicle. Middle fibres: medial border of the acromion and the superior edge of the spine of the scapula. Inferior fibres: tubercle of the