Thanks for your video. I have a few questions. (1) Blood pressure is measured in mmHg. What is the area unit? (compared to atmospheric pressure of about 14.7 pounds per square inch). (2) Is the Diastolic pressure a form of static pressure (going in all directions) and Systolic pressure a form of dynamic pressure (mainly going away from heart)? (3) The heart contraction sends a wave through the main arteries blood stream that is faster than the main flow (like a wave pushing downstream every two seconds on a river), causing a continual flow toward the capillary beds. Edit: I had read (3) in another video, but I don’t think it’s right. The heart contraction injects blood from the left ventricle, causing pressure at the source of the “river”; the blood is not in a continuous stream in which the contraction adds more blood and pressure. Edit: In programming language, it’s like continually inserting a new item at the beginning (or end) of a list. Each item is a small volume of blood.
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Thanks for your video. I have a few questions. (1) Blood pressure is measured in mmHg. What is the area unit? (compared to atmospheric pressure of about 14.7 pounds per square inch). (2) Is the Diastolic pressure a form of static pressure (going in all directions) and Systolic pressure a form of dynamic pressure (mainly going away from heart)? (3) The heart contraction sends a wave through the main arteries blood stream that is faster than the main flow (like a wave pushing downstream every two seconds on a river), causing a continual flow toward the capillary beds. Edit: I had read (3) in another video, but I don’t think it’s right. The heart contraction injects blood from the left ventricle, causing pressure at the source of the “river”; the blood is not in a continuous stream in which the contraction adds more blood and pressure. Edit: In programming language, it’s like continually inserting a new item at the beginning (or end) of a list. Each item is a small volume of blood.
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