Which of the following is the correct sequence of blood flow in birds and mammals?
A) left ventricle → aorta → lungs → systemic circulation
B) vena cava → right atrium → right ventricle → pulmonary vein
C) pulmonary vein → left atrium → left ventricle → pulmonary circuit
D) vena cava → right atrium → right ventricle → pulmonary artery

Question

Quizplus · Accepted Answer

The correct sequence of blood flow in birds and mammals starts with the vena cava, which brings deoxygenated blood into the right atrium. From the right atrium, blood moves to the right ventricle, and then it is pumped through the pulmonary artery to the lungs for oxygenation. This sequence is accurately described in option D.

Which of the Following Is the Correct Sequence of Blood