14 Questions
What is the classical method of measuring pressure using a U-shaped tube containing a fluid?
Manometer
What are the three types of pressure gauges used in a sphygmomanometer?
- Mercury type 2. Aneroid type 3. Electronic type
What is the most common clinical instrument used in measuring blood pressure?
Sphygmomanometer
What type of fluid is commonly used in a U-shaped manometer for measuring pressure?
Mercury
What is the formula for calculating efficiency?
Efficiency % = [output (work done) / input (energy consumed)] x 100%
How can the critical velocity of blood (Vc) be calculated?
Vc = K x (η / ρ R)
What are the two types of flow in blood circulation?
- Laminar flow 2) Turbulent flow
What happens to the flow rate if the pressure difference is doubled?
The flow rate also doubles.
How does the flow rate vary with the length and viscosity of the tube?
The flow rate varies inversely with the length and viscosity of the tube.
What happens to the flow rate if the radius of the tube is doubled?
The flow rate increases by a factor of 16.
In what units would the flow rate be measured if PA-PB is in N/m2, η is in pas, and R and L are in meters?
The flow rate will be measured in m/sec.
What is the formula for calculating kinetic energy?
K.E = 1/2 mv^2
How is the increased kinetic energy of the fluid obtained in the frictionless tube?
The increased kinetic energy of the fluid is obtained by a reduction of the potential energy of the pressure in the tube.
What is the relationship between blood velocity and the total cross-sectional area of the vessels carrying the blood?
The blood velocity is related inversely to the total cross-sectional area of the vessels carrying the blood.
Explore the classical method of measuring pressure in the body using a manometer and a U-shaped tube containing fluid. Learn about the process of determining the height of a column of liquid to measure pressure and how the levels in the arms change until the difference in the levels is equal to the pressure being measured.
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