El sistema circulatorio – ¿Sabías que?

The human body contains approximately 100,000 kilometers of blood vessels. If these vessels were laid out in a straight line, they would encircle the Earth two and a half times, illustrating the vast network within our bodies.

How many kilometers of blood vessels are present in the human body?

• 50,000 km

• 100,000 km

• 150,000 km

• 200,000 km

If stretched out, how many times could the blood vessels in the human body circle the Earth?

• Two and a half times

• Once

• Three times

• Twice