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Which end of the blood capillary has the high hydrostatic pressure?
Wiki User
∙ 12y ago
arterial end
Wiki User
∙ 12y ago
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Why hydrostatic pressure is high at arterial end of blood capillary?
heart
How is high blood hydrostatic produced?
High blood hydrostatic pressure in blood vessels is produced when there is an increase in blood flow and these vessels become hard. This can lead to hypertensive conditions and even edema.
Is blood pressure higher in capillaries than in veins?
The blood is under low pressure once entering the capillary.
How is hydrostatic pressure related to blood pressure?
gravity is not just a force, its also is a signal , a signal that tells the body how to act, on earth blood pools in the feet ,when people stand the blood pressure in there feet can be high
Why is glomerulus a high pressure capillary bed?
The diameter of the afferent renal arteriole narrows progressively more and more into the glomerular capillaries, with the same blood flow, leading to an increase in pressure within the glomerulus. This is so that the high pressure can force solutes and water across into the Bowman's capsule for the renal tubules.
Why is the blood pressure lower in lung capillaries than body capillaries?
Because if blood pressure in lung capillaries was as high as it is in body capillaries, the hydrostatic pressure caused by this blood pressure would force blood plasma out of the capillaries into intracellular spaces (as is done in body capillaries) or into the alveoli. This would reduce the efficiency of gas exchange.
What causes excess fluid in the interstitial compartment?
There is hydrostatic pressure within the capillary pushing the fluid out because fluid will always flow from high pressure to low pressure. At the same time there is something called blood colloid osmotic pressure which is the formed elements and larger plasma components such as proteins drawing fluid back into the capillary lumen by osmosis. The end result is that nearly just as much fluid that is filtered out at one end is reabsorbed by the time it reaches the other end. This is known as Starlings Law of the capillaries.What little excess isn't reabsorbed by the capillary will be picked up and returned to the cardiovascular system through the lymphatic system.
What causes Plasma oncotic pressure?
The capillary oncotic pressure is higher because of the plasma proteins trapped within the capillaries. The high oncotic pressure pulls the water from from the interstitium into the capillary.
Why does arteriole dilation increase capillary pressure and flow but venous dilation does not?
Blood flow in the circulatory system is as follows: arteries->arterioles->capillaries->venules->veins. if you dilate the arteriole you are in fact lowering the resistance of the vessel (Poiseuille's Law), and it follows that net flux will increase. If capillary resistance remains the same, but the net flux has increased, then there will be an upwards change in pressure (Ohm's law). As far as veins go, it has a high compliance, which means that it can store large amounts of blood without raising venal pressure. If your question asked whether or not capillary pressure increases when venous dilates then the answer is no. Capillary blood flow will be less restricted as they flow into venules->vein and therefore will not have an increased pressure. If the question asked whether or not the venal pressure increases, then the answer is yes, but it is negligible (it has high compliance).
Is blood pressure highest in the aorta pulmonary artery capillary bed or subclavian vein?
The order, from most to least pressure: * Aorta * pulmonary artery * capillary bed * subclavian vein This is because the aorta takes blood the farthest distance, from the heart to the rest of our body organs, so it requires a greater push from the heart. Pressure in the veins is always lower, due to the fact the blood flowing through them has travelled further. The pulmonary artery doesn't take blood as far as the aorta, so it therefore does not need as high a pressure.
Why is the sphygmomanometer kept at the level of your heart while measuring your blood pressure?
If it is below your heart then the reading could be falsely high; if it is too high, falsely low. This is due to the hydrostatic component of the blood pressure, which is due to gravity and varies only with the height of the point being measured (in a standing position lowest at the head, highest at the feet). When measuring blood pressure it is desirable to have the same hydrostatic component as at the heart. Therefore, by convention, the "right" blood pressure is the one taken at the heart level. Please note that a 10 cm difference in level between the point of measure and the heart would introduce an error of 7.6 mmHg.
In filtration hydrostatic pressure pushes water molecules from an area of?
high concentration to low concentration
