Femoral Vein to Right Lung Pathway: Anatomical Trace

Femoral vein → Common iliac vein → Inferior vena cava (IVC) → enters Right atrium → Tricuspid valve → Right ventricle → Pulmonary valve → Pulmonary trunk → Right and Left pulmonary arteries → Right lung arteries → Pulmonary capillaries in lower right lung → back to Pulmonary vein → Left atrium → Bicuspid (Mitral) valve → Left ventricle → Aortic valve → Ascending aorta → gives off Brachiocephalic, Left common carotid, Left subclavian arteries. The brachiocephalic artery divides into Right subclavian and Right common carotid arteries. Right subclavian passes through thoracic cavity becoming Axillary artery in arm → Brachial artery at elbow → branches into Radial and Ulnar arteries at wrist.