Upper Extremity Fasciae

Fascia of the back

Thoracolumbar Fascia

Thoracolumbar Fascia

Provides fascial attachment for the latissimus dorsi muscle; covers the deep muscles of the back, attaching to both spinous and transverse processes and splitting to surround the erector spinae and quadratus lumborum muscles; upper portion of gluteus maximus attaches to it as well

Fascia of the upper extremity

Clavipectoral fascia, Axillary sheath, Brachial fascia, Antebrachial fascia, Palmar aponeurosis

Details of Clavipectoral fascia

Attached to the inferior surface of the clavicle and splits to surround the subclavius and pectoralis minor muscles

Details of the Axillary Sheath

Surrounds the axillary artery, vein, and the cords of the brachial plexus; continuous with the prevertebral fascia of the neck

What are the two brachial fasciaes?

Medial intermuscular septum, Lateral intermuscular septum

What are the two antebrachial fasciaes?

Extensor retinaculum and Flexor retinaculum

Details of Extensor Retinaculum

From the anterior surface of the distal radius to the triquetral and pisiform

Details of the Flexor Retinaculum

A reinforcement of the antebrachial fascia that is continuous with the palmar aponeurosis (not to be confused with the transverse carpal ligament)

Details of the Palmar Aponeurosis

Continuous with the tendon of the palmaris longus and flexor retinaculum