Lymphatic vascular disorders. These could cause lymphedema. That is swelling because of problems of the normal draining of the lymph nodes. Respiratory program. As blood flows throughout the capillaries inside the lungs, carbon dioxide is removed and oxygen is picked up. The carbon dioxide leaves the human body throughout the lungs. Plus https://www.sgvascularctr.com/a-comprehensive-approach-to-lymphoedema-treatment-a-vascular-surgeons-perspective/