Fascial compartments of forearm. Interosseous membrane.

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Presentation transcript:

Fascial compartments of forearm

Interosseous membrane

Oblique cord.

Flexor and extensor retinacula

Flexor retinaculum

Extensor retinaculum

Carpal tunnel

Contents of anterior fascial compartment of forearm Muscles: Superficial group: pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris. Intermediate group: flexor digitorum superficialis. Deep group: flexor pollicis longus, flexor digitorum profundus, pronator quadratus. Blood supply to muscles: ulnar a., radial a. N. supply to muscles: median n., ulnar n.

Contents of anterior fascial compartment of forearm

Muscles.

Superficial group.

Intermediate group.

Deep group.

Blood supply to muscles.

N. supply to muscles.

Arteries of anterior fascial compartment of forearm

Ulnar a.

Branches 1.Muscular branches. 2.Recurrent branches. 3.Branches that share in arterial anastomosis around wrist joint. 4.Common interosseous a.

Branches

Muscular branches.

Recurrent branches.

Branches that share in arterial anastomosis around wrist joint.

Common interosseous a.

Anterior interosseous a.

Branches 1.Muscular branches. 2.Nutrient branches. 3.Median a.

Branches

Muscular branches.

Nutrient branches.

Median a.

Posterior interosseous a.

Radial a.

Branches in forearm 1.Muscular branches. 2.Recurrent branch. 3.Superficial palmar branch.

Branches in forearm

Muscular branches.

Recurrent branch.

Superficial palmar branch.

Arterial anastomosis around elbow joint 1.Middle collateral a. (from profunda brachii a.) with interosseous recurrent a. (from posterior interosseous a.). 2.Radial collateral a. (from profunda brachii a.) with radial recurrent a. (from radial a.). 3.Superior ulnar collateral a. (from brachial a.) with posterior ulnar recurrent a. (from ulnar a.). 4.Inferior ulnar collateral a. (from brachial a.) with anterior ulnar recurrent a. (from ulnar a.).

Arterial anastomosis around elbow joint

Nerves of anterior fascial compartment of forearm

Median n.

Branches 1.Muscular branches. 2.Articular branches. 3.Anterior interosseous n. 4.Palmar cutaneous branch.

Branches

Muscular branches.

Articular branches.

Anterior interosseous n.

Palmar cutaneous branch.

Anterior interosseous n.

Branches 1.Muscular branches. 2.Articular branches.

Branches

Muscular branches.

Articular branches.

Ulnar n.

Branches 1.Muscular branches. 2.Articular branches. 3.Palmar cutaneous branch. 4.Dorsal (posterior) cutaneous branch.

Branches

Muscular branches.

Articular branches.

Palmar cutaneous branch.

Dorsal (posterior) cutaneous branch.