रक्तनलीहरू जनाउँछन् । (Blood circulation is shown in the given figure . A and D are organs of human body and B. C. E and F represent blood vessels.) B A दायाँ अरिकल (RA) बायाँ अरिकल (LA) दाय भेन्ट्रिकल(RV) बायाँ भेन्ट्रिकल(LV) F E D ​