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Disorders of the Respiratory System

what is intra...

Question

what is intra pulmonary pressure

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Solution

Intrapulmonary pressure is a amount of pressure that is maintained inside the lungs to prevent them from collapsing after expiration.

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Q. Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external intercostal muscles
(c) Pulmonary volume decreases
(d) Intra-pulmonary pressure increases

Q. Assertion :Inspiration occurs when there is a negative pressure in the lungs with respect to the atmospheric pressure. Reason: During inspiration, a decrease in pulmonary volume increases the intra-pulmonary pressure than atmospheric pressure which forces the air from outside to move into the lungs.

Q. Select the correct events that occur during expiration.
a. Contraction of diaphragm
b. Pulmonary volume decreases as diaphragm becomes dome shaped
c. Increase in intra pulmonary pressure
d. Contraction of external inter-costal muscles

Q. Fill up the blanks in the following paragraph by selecting the correct option.
The movement of air into and out of the lungs is carried out by creating a ____(i)____ between the lungs and the atmosphere. Inspiration can occur if intra-pulmonary pressure is ___(ii)____than the atmospheric pressure. Expiration takes place when the intra-pulmonary pressure is ___(iii)___ than the atmospheric pressure. Inspiration is initiated by the ___(iv)___ of diaphragm which ____(v)____ the volume of thoracic chamber in the anteroposterior axis.

Blood pressure in the pulmonary artery is

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