Which regions drain into the right venous angle?

• A. Right side of head, face, and neck
• B. Right upper quadrant
• C. Right upper extremity
• D. All of the above

Answer: (D)

The right venous angle collects lymph from regions served by the right lymphatic duct, which drains lymph from the right half of the body above the diaphragm. This includes the right side of the head, face, and neck; the right upper limb; and the right side of the thorax and nearby upper abdominal region. Since all of these areas channel lymph into the right lymphatic duct, they ultimately empty at the right venous angle where the duct joins the right internal jugular and right subclavian veins. The left side and the rest of the body drain mainly through the thoracic duct into the left venous angle, so this distribution helps explain why the right-side regions converge at the right venous angle.