Question
Blood drawn into the heart FROM the BODY via the VENA CAVA is... deoxygenated watery blue oxygenated
Answer
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Anthony
Elite · Tutor for 8 years
Answer
Deoxygenated
Explanation
The Vena Cava, which includes both the Inferior and Superior Vena Cava, plays a crucial role in the circulatory system by returning blood back to the heart from the body. To understand the nature of the blood it carries, it's important to remember the basic function of the circulatory system. The heart pumps oxygenated blood to the body through arteries, and after the oxygen is used by the body's tissues, the now deoxygenated blood is returned to the heart through veins. The Vena Cava, being a major vein, thus carries deoxygenated blood from the body back to the heart, specifically to the right atrium. This process is essential for the blood to get re-oxygenated in the lungs via the pulmonary circulation. The descriptions "watery" and "blue" are not scientifically accurate terms for describing the state of blood; blood's color is due to hemoglobin and is not inherently blue. "Oxygenated" describes blood coming from the lungs back to the heart, not from the body to the heart.