Simple or complex cars does require the process of digestion in order to be split and broken down into glucose and other types of nutrients. Grow foods are rich in carbs, which is healthy for people with an active lifestyle. Also if the carb is properly digested, yes it does help maintain proper blood sugar levels.
Superior/inferior vena cava - right atrium - right ventricle - pulmonary artery - lungs(for oxygenation) - pulmonary vein
