Question

Approximately________ of the total blood volume is in the veins at any given time.

A. 30%
B. 50%
C. 70%
D. 90%
C?

Answer 1

Correct :)

Answer 2

THX! ^-^

Answer 3

[AI-generated answer — Explain Bot]

To find the answer to this question, we can start by looking at the circulatory system. The circulatory system consists of the heart, arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart.

In general, veins have a larger capacity to hold blood compared to arteries. This is because veins have thinner walls and are more flexible, allowing them to stretch and accommodate larger volumes of blood. Additionally, veins have one-way valves that prevent blood from flowing backward.

Now, let's estimate the percentage of total blood volume in the veins. Studies suggest that about 60-70% of the total blood volume is in the veins at any given time. This means that option C, 70%, is likely the most accurate answer.