(1) the average speed of BIBBU fNBW IN major arteries of the body, which have a total cross-sectional area of about 2.0 cm², Use the data of Example 10–12 O.
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
![Example 10–12 Estimate
Blood flow.
In humans, blood flows from the heart into the aorta, from which it passes into the major arteries, Fig. 10–20 O. These branch into the small arteries
(arterioles), which in turn branch into myriads of tiny capillaries. The blood returns to the heart via the veins. The radius of the aorta is about 1.2 cm, and the
blood passing through it has a speed of about 40 cm/s. A typical capillary has a radius of about 4 x 10-4 cm, and blood flows through it at a speed of about 5 ×
10-4 m/s. Estimate the number of capillaries that are in the body.
Нead
Arms
Lungs
Aorta
Нeart
Body organs
Trunk
Kidneys
Legs
v = valves
c = capillaries
Figure 10-20
Human circulatory system.
Arteries
Veins](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa5da97f3-64e2-4058-a8a2-1211abcc7387%2F4550b4d3-59f1-4b88-8731-977b639e5f65%2Fauivi4d_processed.png&w=3840&q=75)
![42. (1) Calculate the average speed of blood flow in the major
arteries of the body, which have a total cross-sectional area of
about 2.0 cm?. Use the data of Example 10-–12 D.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa5da97f3-64e2-4058-a8a2-1211abcc7387%2F4550b4d3-59f1-4b88-8731-977b639e5f65%2F23rpdp_processed.png&w=3840&q=75)
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