Respiratory System Anatomy: Nose Functions

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What primarily causes an increase in breathing rate?

Elevated levels of H+ due to high CO2 concentration (correct)

High levels of oxygen in the blood

Low blood pressure

Increased pH from a decrease in CO2 concentration

What is the main cause for the body to increase breathing rate during strenuous exercise?

Elevated body temperature

High O2 levels in the blood

Increased CO2 levels in the muscles

H+ ions resulting from lactate production (correct)

What stimulates chemoreceptors to increase breathing rate?

Increase in blood pH

High oxygen levels in the blood

Significant drop in oxygen levels (correct)

Low pressure of all gases in the air

How is most oxygen transported in the blood?

Attached to hemoglobin in erythrocytes Signup and view all the answers

What is the primary function of fetal breathing movements?

To practice breathing movements for birth Signup and view all the answers

What causes altitude sickness to occur typically above 8000 feet?

Low blood oxygen levels Signup and view all the answers

What is the main function of the conducting zone in the respiratory system?

Trapping debris and pathogens Signup and view all the answers

Where does gas exchange primarily occur in the respiratory system?

Alveoli Signup and view all the answers

What is the function of cilia in the nose?

Push mucus and debris towards the throat Signup and view all the answers

Which structure closes off the trachea during swallowing to ensure food goes to the esophagus?

Epiglottis Signup and view all the answers

What is the purpose of alveolar macrophages in the lungs?

To protect against pathogens Signup and view all the answers

A special nerve at the carina induces violent coughing when a foreign body is present. Which nerve is responsible for this response?

Glossopharyngeal nerve Signup and view all the answers

Which of the following describes the primary function of pulmonary ventilation?

6 Signup and view all the answers

What is the role of visceral pleura in lung anatomy?

Surround the lung tissue directly Signup and view all the answers

Which term describes the maximum amount of air a person can inhale after taking a normal breath?

Inspiratory reserve volume Signup and view all the answers

Respiratory System Anatomy: Nose Functions

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