Consider Pascal’s principle. If the heart exerts a pressure of 120 mmHg on the blood in the aorta, where else in the body will the blood pressure be 120 mm Hg? A. in the brachial artery of a seated person B. in the superior vena cava of a standing person. C. in the capillaries of the feet of a supine person D. in the anterior tibial artery of a person who is standing
Option A. Resting BP is typically measured at the same time as the person is seated. In this posture, the brachial artery is at the extent of the heart. Hence gravity will not have an effect on the BP withinside the brachial artery. In a standing person, gravity might increase the BP withinside the legs. BP withinside the capillaries and vena cava isn't always comparable to BP withinside the aorta.
