Which vascular structure is found at the deltopectoral interval?

Which vascular structure is found at the deltopectoral interval?

• A. Axillary Artery
• B. Brachial Plexus
• C. Cephalic Vein
• D. Subclavian Vein

Answer: (C)

The deltopectoral interval is a space between the deltoid and pectoralis major where a superficial vein runs in the fascia, making it the cephalic vein. This vein ascends along the lateral aspect of the arm and passes through this groove on its way to drain into the axillary vein, which is why it’s the structure you’d expect to find there. The other structures lie in different planes: the axillary artery sits deeper and more medial behind the pectoralis minor, the brachial plexus is embedded in the axilla and behind the pectoralis minor, and the subclavian vein runs under the clavicle, not in the deltopectoral interval.

The deltopectoral interval is a space between the deltoid and pectoralis major where a superficial vein runs in the fascia, making it the cephalic vein. This vein ascends along the lateral aspect of the arm and passes through this groove on its way to drain into the axillary vein, which is why it’s the structure you’d expect to find there. The other structures lie in different planes: the axillary artery sits deeper and more medial behind the pectoralis minor, the brachial plexus is embedded in the axilla and behind the pectoralis minor, and the subclavian vein runs under the clavicle, not in the deltopectoral interval.