THE CUBITAL FOSSA
✒ Introduction
The cubital fossa is a triangular hollow in front of the elbow. It is homologous with the popliteal fossa in
the lower limb.
✒ Boundaries
- Lateral = Brachioradialis muscle
- Medial = Pronator Teres muscle
- Base = An imaginary line joining the lateral and medial epicindyles of the humerus.
- Apex = Meeting point of the lateral and medial boundaries.
- Floor = Brachialis muscle
Supinator muscle
- Roof = It is firmed from superficial to deep by;
Skin
Superficial fascia
Deep fascia strengthened by bicipital aponeurosis
✒ Contents
From lateral to medial;
- Median nerve
- Brachial artery
- Biceps tendon
- Radial nerve
✒ Clinical correlates
1. The median cubital vein is used for collecting blood samples as well as giving intravenous injection.
2. The cubital fossa is used for recording blood pressure through the brachial pulse.
