Correctly label the following major systemic veins. Cephalic v. Median antebrachial Brachiocephalic v. Subclavian v. Basilic v Axillary Dorsal venous network
The Correct Answer and Explanation is:
Correct Labeling of Major Systemic Veins
- Cephalic vein
- Median antebrachial vein
- Brachiocephalic vein
- Subclavian vein
- Basilic vein
- Axillary vein
- Dorsal venous network
Explanation
The systemic veins are essential for returning deoxygenated blood from various parts of the body back to the heart. In the upper limb and thoracic region, several key veins are involved in this process, and each plays a specific role.
Cephalic vein: This superficial vein runs along the lateral (thumb-side) aspect of the arm. It originates from the dorsal venous network of the hand and ascends to eventually drain into the axillary vein. It’s often visible beneath the skin and used for intravenous access.
Median antebrachial vein: Found in the forearm, this vein lies between the cephalic and basilic veins and typically drains into either or both. It is superficial and commonly used for venipuncture.
Basilic vein: This vein is located on the medial (pinky-side) aspect of the arm. Like the cephalic, it also arises from the dorsal venous network and continues up the arm to become the axillary vein after it joins with the brachial veins.
Axillary vein: This deep vein is formed by the union of the basilic vein and brachial veins. It continues proximally to become the subclavian vein. It plays a critical role in draining blood from the upper limb.
Subclavian vein: As a continuation of the axillary vein, the subclavian vein passes under the clavicle and joins with the internal jugular vein to form the brachiocephalic vein.
Brachiocephalic vein: Formed by the union of the subclavian and internal jugular veins, this vein is responsible for carrying blood from the upper limbs, neck, and head back to the heart via the superior vena cava.
Dorsal venous network: This is a network of interconnected veins on the back of the hand. It drains into both the cephalic and basilic veins and serves as a superficial entry point into the venous system of the upper limb.
Understanding this venous anatomy is vital in medicine, especially for procedures like IV insertion, blood draws, and diagnosing circulatory issues.
