List, in order, the major blood vessels, chambers, and valves through which a drop of blood must pass when traveling from a vena cava.

Deoxygenated blood flows from the vena cava, into the right atrium, it's then pumped through the atrio-ventricular valves and into the right ventricles. It is then pumped from the right ventricles through the semi-lunar valves to the pulmonary artery where deoxygenated blood is carried to the lungs

Answered by staceysymons | 2024-06-10

Pathway of Blood from Vena Cava to the Pulmonary Circuit and Systemic Veins
The pathway of blood from the vena cava through the heart and to the body follows a precise route involving various chambers, valves, and vessels. Starting from the entry of deoxygenated blood into the right atrium from the superior vena cava and inferior vena cava, the blood moves to the right ventricle through the tricuspid valve. From the right ventricle, it is pumped via the pulmonary valve into the pulmonary artery and travels to the lungs to get oxygenated. After oxygenation, it returns to the left atrium through the pulmonary veins, passes into the left ventricle through the mitral valve, and is pumped into the aorta through the aortic valve. The oxygenated blood is then distributed throughout the body.
The pathway of blood through systemic veins begins at the feet and includes vessels such as the digital and plantar veins, which lead into the posterior tibial and anterior tibial veins. These join to form the popliteal vein behind the knee, which becomes the femoral vein as it ascends the leg. The great saphenous and small saphenous veins also drain into the femoral vein, which then becomes the external iliac vein. The external iliac combines with the internal iliac vein to form the common iliac veins, which in turn join to become the inferior vena cava, completing the journey back to the heart's right atrium.

Answered by GeorgeArliss | 2024-06-24

The pathway of blood from the vena cava begins in the right atrium, moves to the right ventricle, and then to the lungs for oxygenation. The oxygenated blood returns to the left atrium, passes into the left ventricle, and is then pumped into the aorta to supply the body. This process highlights how blood circulates throughout the heart and body efficiently.
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Answered by GeorgeArliss | 2024-12-23