Final answer:
The three major sites for Central Line Placement are the Femoral Vein, Subclavian Vein, and the Jugular Vein, which are chosen for their size and accessibility and ultimately drain into the Superior Vena Cava.
Step-by-step explanation:
The three major sites for Central Line Placement are the Femoral Vein, Subclavian Vein, and the Jugular Vein. These veins are chosen due to their large size and relative ease of access. The Subclavian Vein is formed as the axillary vein passes through the body wall and it merges with the external and internal Jugular Veins from the head and neck to form the brachiocephalic vein. The Femoral Vein is located in the groin and is another common site for central venous access due to its accessibility, especially in patients that are obese or have other anatomical challenges.
The Superior Vena Cava is a large vein that drains blood from the upper body directly into the right atrium of the heart. It receives blood from the subclavian vein as well as the internal thoracic and axillary veins, among others. It's important to note that while the sites mentioned above are related to the venous system and are used for central line placement, the aorta, arteries, and veins like the Brachial Artery or Radial Artery (which are included in some of the wrong answer choices) are not typically sites for central venous access.