A man who is standing has a resting systolic blood pressure of 120 mmHg at the start of his aorta. What will be the pressure in the arteries of his feet? A. about 40 mmHg, as arterial blood pressure decreases with distance from the heart. B. about 120 mmHg as arterial blood pressure does not fall appreciably until just before blood enters the capillaries. C. about 200 mmHg as the “head” of liquid increases the blood pressure in the feet. D. about 80 mmHg as blood pressure will drop in the absence of venous return when the “skeletal muscle pump” is not operating.
Option C. When standing, the BP withinside the ft outcomes from the pumping of the heart (120 mmHg) in addition to the hydrostatic impact of the head of liquid – any other 80 mmHg or more.
