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Respiration Functions

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Questions and Answers

What is the primary goal of respiration?

To regulate ventilation

To facilitate gas exchange between the air and blood

To transport oxygen and carbon dioxide in the blood

To provide O2 to the tissues and remove CO2 (correct)

What is the term for the exchange of gases between the air and blood?

Ventilation

External respiration (correct)

Internal respiration

Pulmonary respiration

What is the term for the region where gas exchange occurs?

Bronchial zone

Respiratory zone (correct)

Conducting zone

Alveolar zone

Which of the following is NOT a function of respiration?

Digestion of nutrients Signup and view all the answers

What is the primary function of the conducting zone structures in the respiratory system?

To warm and humidify the inspired air and filter out particles Signup and view all the answers

What is the term for the anatomical structures through which air passes before reaching the respiratory zone?

Conducting zone Signup and view all the answers

How many major functions of respiration are mentioned in the text?

4 Signup and view all the answers

What is the temperature of the inspired air when it reaches the respiratory zone?

37°C (body temperature) Signup and view all the answers

What is the purpose of the mucus secreted by cells of the conducting zone structures?

To trap small particles in the inspired air and filter out impurities Signup and view all the answers

What is the approximate rate at which mucus is moved along the conducting zone by cilia?

1 to 2 centimeters per minute Signup and view all the answers

What is the typical size of particles that are filtered out of the inspired air by the conducting zone structures?

Particles larger than about 6 μm Signup and view all the answers

What are the two ways in which the lungs can be expanded and contracted?

By downward and upward movement of the diaphragm and elevation and depression of the ribs Signup and view all the answers