“Is it true that Flow and pressure are contrary; a wound causing large blood flow reduces the pressure so you see the blood pouring out rather than in jets of blood?”
Blood Flow and Pressure Relationship
No, the statement is not accurate. Blood flow and pressure are not contrary in the way described; rather, high pressure is what causes the high flow associated with arterial bleeding. The perception that large blood flow reduces pressure is incorrect. In fact, arterial bleeding is characterized by high pressure, which results in blood being expelled in pulsing spurts or jets, not a steady pour. This high pressure is due to the heart’s pumping action and the elasticity of arteries, which maintain pressure throughout the circulatory system. When an artery is ruptured, the high internal pressure forces blood out rapidly and intermittently, coinciding with the heartbeat, creating a spurt or jet of blood. This is in contrast to venous bleeding, where lower pressure results in a steady, oozing flow rather than spurting. The relationship between pressure and flow is governed by the Poiseuille equation, where flow is directly proportional to the pressure gradient and inversely proportional to resistance, meaning higher pressure leads to greater flow. Therefore, the visible jetting of blood from an arterial wound is a direct result of high pressure, not a reduction in pressure caused by high flow.AI-generated answer. Please verify critical facts.
Wirral In It Together 