Question

The blood pressure in humans is greater at the feet than at the brain because

• A. Of gravitational force
• B. Weight of the man is concentrated at the feet
• C. Of height of blood column
• D. Concentration of blood is more at the feet

Answer 1

Answer: (C)

Of height of blood column

In humans, the height of the blood column is concentrated more at the feet rather than at the brain. This causes more force to be applied to push the blood black to the heart against the gravity due to the height column. The pressure at the brain is less due to less distance and force required to carry the blood back to the heart.

Thus, the correct answer is option C.