Fascial compartments of upper arm

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Presentation transcript:

Fascial compartments of upper arm

Contents of anterior fascial compartment of upper arm Muscles: biceps brachii, coracobrachialis, brachialis. Blood supply: brachial a. N. supply to the muscles: musculocutaneous n. Structures passing through compartment: musculocutaneous n., median n., ulnar n., brachial a., basilic v., radial n. (in lower part)

Contents of anterior fascial compartment of upper arm

Muscles

Blood supply

N. supply to the muscles

Structures passing through the compartment

Brachial a.

Relations of brachial a.

Branches of brachial a. Muscular branches. Nutrient a. Profunda a. Superior ulnar collateral a. Inferior ulnar collateral a.

Branches of brachial a.

Muscular branches

Nutrient a.

Profunda a.

Superior ulnar collateral a.

Inferior ulnar collateral a.

Musculocutaneous n.

Lateral cutaneous n. of forearm.

Branches of musculocutaneous n. Muscular branches. Cutaneous branches: Lateral cutaneous n. of forearm. Articular branches.

Branches of musculocutaneous n.

Muscular branches

Cutaneous branches Lateral cutaneous n. of forearm.

Articular branches

Median n.

Ulnar n.

Radial n.

Contents of posterior fascial compartment of upper arm Muscle: three heads of triceps m. N. supply to the muscle: radial n. Blood supply: profunda brachii a., ulnar collateral arteries. Structures passing through the compartment: radial n., ulnar n.

Contents of posterior fascial compartment of upper arm

Muscle

N. Supply to the muscle

Blood supply

Structures passing through the compartment

Radial n.

Branches of radial n. Branches in the axilla: Muscular branches. Posterior cutaneous n. of arm. Branches in the spiral groove: Lower lateral cutaneous n. of arm. Posterior cutaneous n. of forearm. Branches in the anterior compartment of arm: Articular branches.

Branches of radial n.

Branches in the axilla

Posterior cutaneous n. of the arm.

Branches in the spiral groove

Lower lateral cutaneous n. of the arm.

Posterior cutaneous n. of the forearm.

Branches in the anterior compartment of the arm

Articular branches.

Ulnar n.

Behind the medial epicondyle of humerus.

Branches of ulnar n.

Profunda brachii a.

Superior and inferior ulnar collateral arteries

Cubital fossa Laterally: brachioradialis m. Medially: pronator teres m. Base of triangle: line between 2 epicondyles of humerus. Floor of fossa: supinator m. laterally & brachialis m. medially. Roof: skin, fascia, bicipital aponeurosis. Contents: (from medial to lateral): median n., bifurcation of brachial a. into ulnar & radial arteries, tendon of biceps m., radial n. & its deep branch.

Cubital fossa

Cubital fossa

Cubital fossa

Supratrochlear lymph node

The Forearm Skin Sensory n. supply

Superficial veins

Cephalic v.

Median cubital v.

Basilic v.

Superficial lymph vessels Supratrochlear lymph node.