CUBITAL FOSSA

CUBITAL FOSSA

Cubital fossa is triangular hollow situated on the front of the elbow (it is homologus with the popliteal fossa of the lower limb situated on the back of the knee)

Boundries 

Roof

The roof of cubital fossa is formed by

1. Skin

2. Superficial fascia containing the median cubital vein joining the cephalic and basilic veins. The lateral cutaneous nerve of the forearm lies along with  cephalic vein and the medial cutaneous nerves of the forearm along with basilic vein.

3. Deep fascia

4. Bicipital aponeurosis

Floor

It is formed by :

1. Brachialis 

2. Supinator surrounding the upper part of radius

Contents

The fossa is actually very narrow. The contents described are seen after retracting the boundaries. From medial to the lateral side, the contents are as follows:

1. The median nerve 

2. The termination of the brachial artery and the beginning of the radial and ulnar arteries lies in the fossa.

3. The tendon of bicep brachii.

4. The radial nerve.