Question

question 3 of 10
which of the following steps in the blood flow of the heart contains deoxygenated or oxygen - poor blood? (select all steps with deoxygenated blood for full credit)
blood flows into the right atrium from the ivc, svc and coronary sinuses.
blood flows from right atrium to the right ventricle through the tricuspid valve.
blood flows from the right ventricle to the pulmonary trunk through the pulmonary valve.
blood enters pulmonary arteries and go into the lung capillaries.
blood flows from the lungs back to the heart through pulmonary veins to left atrium.
blood flows from left atrium to left ventricle through the mitral valve.
blood flows out of the heart from the left ventricle to the aorta through the aortic valve and off to the body.

Explanation:

Deoxygenated blood enters the right - side of the heart. The inferior vena cava (IVC), superior vena cava (SVC) and coronary sinus bring deoxygenated blood to the right atrium. From the right atrium, it passes to the right ventricle through the tricuspid valve, then from the right ventricle to the pulmonary trunk through the pulmonary valve and into the pulmonary arteries to the lungs for oxygenation. Blood in the pulmonary veins, left atrium, left ventricle and aorta is oxygen - rich.

Answer:

Blood flows into the right atrium from the IVC, SVC and coronary sinuses.
Blood flows from right atrium to the right ventricle through the tricuspid valve.
Blood flows from the right ventricle to the pulmonary trunk through the pulmonary valve.
Blood enters pulmonary arteries and go into the lung capillaries.