Pressure Changes in Alveoli Quiz

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During inspiration, the pressure within the lungs (intrapulmonary pressure) is _________ the air pressure outside the body.

equal to

unrelated to

less than (correct)

greater than

During expiration, the pressure in the lungs _ and the volume in the thorax _.

increases, decreases (correct)

increases, increases

decreases, increases

decreases, decreases

The pressure changes required for adequate ventilation at rest are _________.

variable

quite large

small (correct)

moderate

Which of the following is NOT one of the four components of respiration?

Capillary diffusion Signup and view all the answers

Which of the following is an advantage of nasal breathing?

The air is filtered to minimize respiratory infections Signup and view all the answers

Where does gas exchange occur in the lungs?

Respiratory bronchioles and alveoli Signup and view all the answers

What does the arterial–mixed venous oxygen difference across muscle describe?

Differences in oxygen content in the blood of resting and active people Signup and view all the answers

What does the oxyhemoglobin dissociation curve describe?

The effects of oxygen and carbon dioxide in the body Signup and view all the answers

Which of the following is the correct equation for pressure in the pulmonary circulation?

Pressure = flow × resistance Signup and view all the answers

Which of the following is true about the respiratory membrane?

It is composed of the alveolar wall, the capillary wall, and their respective basement membranes Signup and view all the answers

According to Henry's law, gases dissolve in liquids in proportion to their _________.

Partial pressures Signup and view all the answers

Which gas has a much lower diffusion constant than oxygen?

Carbon dioxide Signup and view all the answers

What is the pressure gradient for oxygen across the respiratory membrane?

65 mmHg Signup and view all the answers

What is the oxygen diffusion capacity expressed as?

Volume of oxygen diffused per minute per 1 mmHg of pressure difference Signup and view all the answers

Which of the following is NOT a function of pulmonary diffusion?

Filtering out foreign particles from the air Signup and view all the answers

What is the maximum amount of air that can be expired after a maximal inspiration called?

Vital capacity Signup and view all the answers

What is the main function of the respiratory pump?

Assisting in venous return Signup and view all the answers

Which of the following is true about the oxygen diffusion capacity during maximal exercise?

It increases by up to three times the resting rate Signup and view all the answers

What is the gradient between the mean partial pressure of the pulmonary capillary and the alveolar air?

11 mmHg Signup and view all the answers

What is the approximate diffusion of oxygen per minute through the respiratory membrane?

231 ml Signup and view all the answers

What is the primary cause of the increase in oxygen diffusion capacity from rest to exercise?

Limited perfusion of the upper regions of the lungs Signup and view all the answers

Pressure Changes in Alveoli Quiz

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Questions and Answers

During inspiration, the pressure within the lungs (intrapulmonary pressure) is _________ the air pressure outside the body.

During expiration, the pressure in the lungs _ and the volume in the thorax _.

The pressure changes required for adequate ventilation at rest are _________.

Which of the following is NOT one of the four components of respiration?

Which of the following is an advantage of nasal breathing?

Where does gas exchange occur in the lungs?

What does the arterial–mixed venous oxygen difference across muscle describe?

What does the oxyhemoglobin dissociation curve describe?

Which of the following is the correct equation for pressure in the pulmonary circulation?

Which of the following is true about the respiratory membrane?

According to Henry's law, gases dissolve in liquids in proportion to their _________.

Which gas has a much lower diffusion constant than oxygen?

What is the pressure gradient for oxygen across the respiratory membrane?

What is the oxygen diffusion capacity expressed as?

Which of the following is NOT a function of pulmonary diffusion?

What is the maximum amount of air that can be expired after a maximal inspiration called?

What is the main function of the respiratory pump?

Which of the following is true about the oxygen diffusion capacity during maximal exercise?

What is the gradient between the mean partial pressure of the pulmonary capillary and the alveolar air?

What is the approximate diffusion of oxygen per minute through the respiratory membrane?

What is the primary cause of the increase in oxygen diffusion capacity from rest to exercise?

What is the approximate PCO2 of the blood passing from the right side of the heart through the alveoli?

What is the approximate PCO2 of the air in the alveoli?

What is the pressure gradient for carbon dioxide exchange?

More Like This

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Upgrade to continue

Pressure Changes in Alveoli Quiz

Choose a study mode

Podcast

Questions and Answers

During inspiration, the pressure within the lungs (intrapulmonary pressure) is _________ the air pressure outside the body.

During expiration, the pressure in the lungs _________ and the volume in the thorax _________.

The pressure changes required for adequate ventilation at rest are _________.

Which of the following is NOT one of the four components of respiration?

Which of the following is an advantage of nasal breathing?

Where does gas exchange occur in the lungs?

What does the arterial–mixed venous oxygen difference across muscle describe?

What does the oxyhemoglobin dissociation curve describe?

Which of the following is the correct equation for pressure in the pulmonary circulation?

Which of the following is true about the respiratory membrane?

According to Henry's law, gases dissolve in liquids in proportion to their _________.

Which gas has a much lower diffusion constant than oxygen?

What is the pressure gradient for oxygen across the respiratory membrane?

What is the oxygen diffusion capacity expressed as?

Which of the following is NOT a function of pulmonary diffusion?

What is the maximum amount of air that can be expired after a maximal inspiration called?

What is the main function of the respiratory pump?

Which of the following is true about the oxygen diffusion capacity during maximal exercise?

What is the gradient between the mean partial pressure of the pulmonary capillary and the alveolar air?

What is the approximate diffusion of oxygen per minute through the respiratory membrane?

What is the primary cause of the increase in oxygen diffusion capacity from rest to exercise?

What is the approximate PCO2 of the blood passing from the right side of the heart through the alveoli?

What is the approximate PCO2 of the air in the alveoli?

What is the pressure gradient for carbon dioxide exchange?

More Like This

Respiratory System: Volume and Pressure Changes

Meteorology: Air Pressure Changes

Lung Expansion and Pressure Changes

During expiration, the pressure in the lungs _ and the volume in the thorax _.