A) Right ventricle \[\to \] Pulmonary aorta \[\to \] Tissues \[\to \] Pulmonary veins \[\to \] Left auricle
B) Right auricle \[\to \] Left ventricle \[\to \] aorta \[\to \] Tissues \[\to \] Veins \[\to \] Right auricle
C) Left auricle \[\to \] Left ventricle \[\to \] pulmonary aorta \[\to \] Tissues \[\to \] Right auricle
D) Left auricle \[\to \] Left ventricle \[\to \] aorta \[\to \] Arteries \[\to \] Tissues \[\to \] veins \[\to \] Right atrium
Correct Answer: D
Solution :
The flow of blood from the left ventricle to all parts of the body and back to the right atrium is called the systemic circulation. Freshly oxygenated blood returning from the pulmonary circuit is pumped out of the left ventricle into the aorta. The branches of the aorta continue to subdivide to produce the arterioles and finally the capillaries that ramify through the organs. Venous blood draining from organs inferior to cava. Except for some thoracic venous drainage body regions above the diaphragm are drained by the superior vena cava. The vena cavae empty the deoxygenated blood into the right atrium of heart.
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