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Human Anatomy: Lungs and Respiratory System Quiz

18 Questions

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Human Anatomy: Lungs and Respiratory System Quiz

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Questions and Answers

Which lung is wider?

Right lung (correct)

Left lung

The width of the lung is not mentioned

Both lungs are of equal width

Where is the cardiac notch located?

Both lungs have a cardiac notch

Right lung

Left lung (correct)

Neither lung has a cardiac notch

Which structure of the respiratory tree has the most smooth muscle?

Primary bronchus

Secondary bronchi

Bronchioles (correct)

Tertiary bronchi

What is the primary function of bronchodilation?

Reduce airway resistance Signup and view all the answers

What type of epithelium lines the alveoli?

Simple squamous epithelium Signup and view all the answers

What is the function of surfactant produced by the alveoli?

Reduce surface tension in the alveoli Signup and view all the answers

Which of the following is NOT a component of the respiratory tree?

Pleural cavity Signup and view all the answers

What is the primary function of the bronchioles?

To conduct air to and from the alveoli Signup and view all the answers

Which of the following is NOT a component of the total lung capacity?

Pleural cavity volume Signup and view all the answers

What is the primary function of the alveoli?

To facilitate the exchange of gases between the air and the bloodstream Signup and view all the answers

Which of the following is NOT a component of the respiratory minute volume?

Inspiratory reserve volume Signup and view all the answers

What is the primary function of the pleural cavity?

To allow for smooth movement of the lungs during breathing Signup and view all the answers

Which of the following statements about the respiratory membrane is correct?

Its large surface area and thin structure optimize gas exchange. Signup and view all the answers

What is the primary function of type II pneumocytes?

To secrete surfactant, which reduces surface tension in the alveoli. Signup and view all the answers

What is the primary function of macrophages in the respiratory system?

To remove dust particles and other foreign materials from the lungs. Signup and view all the answers

During inspiration, what happens to the intrapleural pressure?

It decreases, becoming more negative than atmospheric pressure. Signup and view all the answers

Which of the following is true about the process of expiration?

It is typically a passive process, relying on the elastic recoil of the lungs. Signup and view all the answers

What is the primary function of the bronchioles in the respiratory system?

To conduct air to and from the alveoli during respiration. Signup and view all the answers