Labels:earth | paper | subarachnoid space OCR: Pulmonar bed Alveolus of lung Pulmonary artery to lungs) Aorta Ito (Apoq -Pulmonary veins Superior vena cava (from lungs) (from upper bodyl Aortic valve Pulmonic valve Tricuspid valve Mitral valve Infer or vena cavs (from lower body) Course of Course of RA Right atrium unon Kygenated oxygenated Left atrium Right ventricle blood blood Left ventricle arter Superio Cvea Inferior tfrom