Compute the decrease in the blood pressure of the blood flowing through an artery the radius of which is constricted by a factor of 3. Assume that the average flow velocity in the unconstricted region is 50 cm/sec.
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Compute the decrease in the blood pressure of the blood flowing through an artery the radius of which is constricted by a factor of 3. Assume that the average flow velocity in the unconstricted region is 50 cm/sec.
Answer: ▵P = 79 torr
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- At a given instant, the blood pressure in the heart is 1.1 x 104 Pa. If an artery in the brain is 0.38 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow. Number Type your answer here Units Choose your answer hereA sphygornanorneter is a device used to measure blood pressure. It is consisted of an inflatable cuff and a manometer with one end connected to the cuff and the other to the open atmosphere. Blood pressure is measure by h, the difference in the heights between the two colurnns of mercury. If a normal heart pumps out blood with guage pressure 15931 Pa, what reading do we expect to read?The average speed of blood in the aorta is 0.330 m/s, and the radius of the aorta is 1.00 cm. There are about 2.00 × 109 capillaries with an average radius of 6.19 μm. What is the approximate average speed of the blood flow in the capillaries? ?mm/s
- The flow rate of blood through a 2.25 ✕ 10−6 m radius capillary is 3.80 ✕ 10−9 cm3/s. (a) What is the speed of the blood flow (in cm/s)? (This small velocity allows time for diffusion of materials to and from the blood.) (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 80.0 cm3/s? (The large number obtained is an overestimate, but it is still reasonable.)Flow rate is expressed as gas velocity in cm/s. The gas is flowing through an open tubular column with an inner diameter of 0.25 mm. What volume flow rate (mL/min) corresponds to a gas velocity of 50 cm/s? (The volume of a cylinder is pr2 3 length, where r is the radius.)Suppose blood is pumped from the heart at a rate of 4.6 L/min into the aorta of radius 1.1 cm. -Determine the speed of blood through the aorta, in centimeters per second. (v= )
- Suppose blood is pumped from the heart at a rate of 5.1 L/min into the aorta of radius 1.3 cm a. Determine the speed of blood through the aorta, in centimeters per second.Please answer question 7At a given instant, the blood pressure in the heart is 1.1 x 104 Pa. If an artery in the brain is 0.38 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow. Number Type your answer here Units Choose your answer here
- The human ciculatory system has approximately 109 capillary vessels. Each vessel has a diameter of about 8.4 μm. Assuming cardiac output is 4.2 L/min, determine the average velocity (m/s) of blood flow through each capillary vessel.As blood is pumped from the heart, it moves through the ascending aorta and then down the descending thoracic aorta. The ascending aorta has an average cross-sectional area of approximately 7.07cm2, while the descending aorta has an average cross-sectional area of 4.52cm2. The heart pumps out blood at an average flow rate of 0.0800 L/s . Determine the average speed of blood through the ascending aorta:___cm/s Determine the average speed of blood through the descending aorta: ___cm/sThe systolic pressure of a patient is 110 mmHg and the diastolic pressure is 60 mmHg. Given that 760 mmHg is equivalent to 101.3 kPa, what is the systolic and diastolic blood pressure of this patient in units of Pascals?