AdmiralRockWaterBuffalo30
1. What forces cause the rib cage to return to resting position…
1. What forces cause the rib cage to return to resting position following elevation of the rib-cage?
a.
a. Elasticity
b.
b. Gravity
c.
c. Kinetic
d.
d. a & b
e.
e. a & c
2. Boyle’s law states that:
a. given a constant temperature and pressure, increasing the molecules in a container will increase the pressure.
b. given a volume of gas, increasing the pressure on the gas will increase the number of molecules in the gas.
c. given a gas of constant temperature, if you increase the volume of the chamber in which the gas is contained, pressure will decrease.
d.If the volume of gas is decreased, the pressure will decrease
e.None of the above
3.In quiet tidal breathing, inhalation is achieved by
a.Contraction of the lung volume, which results in a decrease in air pressure within the bronchi, resulting in an inward flow of air, per Boyle’s law
b.Expansion of the lung volume, which results in a decrease in air pressure within the bronchi, resulting in an inward flow of air, per Boyle’s law
c.Actively pulling air inward into the lungs, which increases the air pressure in the lungs, and pushes outward on the lung tissue, causing the lungs to expand, per Boyle’s law
d.Expansion of the upper airway in the lungs and compression of the lower airway in the lungs, thus resulting in a pressure differential and a flow of air into the lungs, per Boyle’s law
e.None of the above
4. The average rate of quiet breathing -12 to 20 breaths per minute- is typically.
a.Slower than breathing rate during speech
b.Faster than the breathing rate during speech
c.More variable than the breathing rate during speech
d.Similar to the breathing rate during speech
e.None of the above
5. Which one of the following statements about total lung capacity is true?
a.Total lung capacity is the maximum volume of air that the lungs can hold, and all of that air can be exhaled.
b.Total lung capacity is the maximum volume of air that the lungs can hold, but about 25% of that air cannot be exhaled.
c.Total lung capacity is the total volume of air that can be exchanged during a single maximal inhalation and exhalation.
d.Total lung capacity is the total volume of air that remains in the lungs after all air is exhaled.
e.None of the above
