Explain the direction and the rate of flow in the capillaries. Does the rate remain constant or does it fluctuate from time to time? Does the direction of blood flow ever change?
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Capillaries
Explain the direction and the rate of flow in the capillaries. Does the rate remain constant or does it fluctuate from time to time? Does the direction of blood flow ever change? What limits a capillary from being smaller than a certain size? Are any capillaries dead-end sacs? Are all cells directly adjacent to a capillary, thus providing a simple passage for food, dissolved gasses, and wastes?
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- Using information provided in the text, calculate the power generated by the right ventricle during (a) restful state; blood flow 5 liter/min, and (b) intense activity; blood flow 25 liter/min.1) Explain hydraulic systems, and how they apply to the operation of a hoist. 2) How is pressure applied to liquid? 3) What is a pneumatic system? Give examples of pneumatic systems , and their advantages. 4) What is a pump? Explain how the two types of pump function. 5) What are valves? Show the different ways in which valves function.In our circulatory system, blood can find 4) obstructions in certain veins/arteries, to keep flowing PE HIPE IPE the blood has to accelerate on those areas, in high Jessel Wall speed areas of flow with obstruction, what happens with the pressure? What fluid principle is defining this physical behaviour? KE 11KE KE Pre-stenosis Stenosis Post-stenosis ĮE 20
- The percentage of the object immersed in a fluid is directly proportional to both the densities of itself and of the fluid O inversely proportional to both the densities of itself and the fluid directly proportional to its own density, inversely proportional to the density of the fluid directly proportional to the density of the fluid, inversely proportional to its densityAs blood goes from the left ventricle through the arteries and veins of the human body, both its speed and pressure change. The arteries and arterioles can either constrict, reducing the area, or dilate, increasing the area, in response to certain conditions. Both of these changes can affect blood flow and blood pressure. An artery can also develop a permanent narrow area (stenosis) or a permanent wide area (aneurysm). Both of these changes can have significant health consequences. A patient has developed an aneurysm in the aorta, a short section where the diameter is twice the normal diameter. In the aneurysm, the speed of the blood is ______ than in the section before the aneurysm, and the pressure is _________ than in the section before the aneurysm.A. Greater, greater B. Greater, lessC. Less, greater D. Less, less1) During your experiment, you will have air flowing at a constant flow rate through four different sized ports in a chamber as shown in the picture. Cross sectional area Calculate the cross sectional area for port #1 if its dimension are: Width = 7.2160 x 10-3 m Depth = 8.0260 x 103 m 2) The relationship between Flow Rate (R), Cross Sectional Area (A) and Velocity (v) is called the Continuity equation: R = Av Use the area from question 1 to calculate the velocity of the air at port #1 if the air is flowing at a rate of R = 0.0011366m Width Depth
- The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, blood flow is reduced naturally to 2.10% of its original value. By what factor did the radii of the arterioles constrict? Penguins do this when they stand on ice to reduce the blood flow to their feet.4. A blood platelet drifts along with the flow of blood through an artery that is partially blocked by deposits. As the platelet moves from the wide region to the narrow region and back to the wide region. Describe the change in pressure that the platelet expe- riences.Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased in order to increase blood flow by a factor of 3, assuming no change in pressure difference? rf ri Additional Materials
- Don't use ai to answer I will report your answer Solve it Asap with explanation and calculation.What would be the behavior of an object that was immersed in a fluid if the object and the fluid had the same density? Explain.3. DETAILS A medical patient's femoral artery has an internal cross-sectional area of 0.38 cm² and a blood volume flow rate of 2.30. min Determine the blood flow speed through the artery (round to the nearest thousandth). m S MY NOTES m S ASK YOUR TEACHER Plaque buildup in one region of the artery creates a smaller cross-sectional area of 0.13 cm². Determine the blood flow speed through this partially blocked region of the artery (round to the nearest thousandth). If the blood pressure through the unobstructed artery is 14250 Pa, determine the blood pressure through the partially blocked region. Assume blood has the same density of water, blood-1000 kg Pa m3