close-up of a red blood vessel surrounded by intricate, flowing structures representing human anatomy and circulatory system

blood vessel circulation close red surround intricate flow structure represent human bloodstream perfusion saliva oxygen protein physiology genetic vascular fluid artery cardiology atom nutrient kidney immunity healthsystem medicine network thrombus lumen bloodpressure plasma repair capillary redbloodcell medical particle diagnosis sample pathology bloodflow hemoglobin function therapy surgery organ hematocrit venous treatment close-up surrounded flowing structures representing anatomy circulatory system generative