Physiology of Respiratory System Lecture 3
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Questions and Answers

What is the primary function of gas conditioning in the respiratory system?

  • To warm, humidify, and clean the air of particulate matter (correct)
  • To facilitate gas exchange between the lungs and the blood
  • To produce sounds during breathing
  • To remove oxygen from the air

What is the result of exhalation in the respiratory system?

  • Gas exchange occurs between the lungs and the blood
  • Gases are drawn into the lungs
  • Gases are forced out of the lungs (correct)
  • The air pressure inside the lungs increases

What is the site of olfactory sensation in the respiratory system?

  • Nasal cavity and paranasal sinuses (correct)
  • Trachea
  • Lungs
  • Diaphragm

What is the process of gas exchange in the body called?

<p>Respiration (C)</p> Signup and view all the answers

What is the driving force behind air movement into the lungs during pulmonary ventilation?

<p>Decreased air pressure inside the lungs (B)</p> Signup and view all the answers

What is the role of the respiratory system in removing waste products from the body?

<p>Removes carbon dioxide from the body (C)</p> Signup and view all the answers

What is the condition required for air to flow into the lungs?

<p>The air pressure inside the lungs is lower than the atmospheric pressure. (C)</p> Signup and view all the answers

What is the relationship between the volume of a closed container and the pressure of the gas inside it?

<p>The volume of the container is inversely proportional to the pressure of the gas. (C)</p> Signup and view all the answers

Which muscle is most important for inhalation?

<p>Diaphragm (D)</p> Signup and view all the answers

What is the direction of the pressure gradient during exhalation?

<p>From the lungs to the atmosphere (B)</p> Signup and view all the answers

What is the process of breathing out called?

<p>Exhalation (D)</p> Signup and view all the answers

Is exhalation during quiet breathing an active or passive process?

<p>Passive process (C)</p> Signup and view all the answers

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