a close-up view of a blood vessel with red blood cells flowing through it. the vessel is narrowed and obstructed, indicating

close view blood vessel red cell flow narrow obstruct indicate medical treatment artery microvessel hypertension arteriosclerosis pressure sugar hemodynamic capillary lumen delivery doppler atherosclerosis ischemia ultrasonography medicine endothelium cardio cardiology consultation potential coagulation epidemiology thrombosis oxygen repair expert diagnosis cardiovascular embolism circulation cholesterol inflammation angiogenesis hyperlipidemia coronary vascular anatomy hypoxia closeup cells flowing narrowed obstructed indicating health problems generative