L4 - MCQ

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Questions and Answers

Which part of the respiratory system is responsible for warming, cleaning, and humidifying the air?

  • Pharynx
  • Nose (correct)
  • Sinuses
  • Mouth

Which part of the respiratory system is responsible for gas exchange with the blood?

  • Bronchioles
  • Bronchi
  • Alveoli (correct)
  • Trachea

How many lobes does the left lung have?

  • Four
  • Two (correct)
  • Three
  • One

What is the function of the rib cage in the respiratory system?

<p>All of the above (D)</p> Signup and view all the answers

What is another name for the rib cage?

<p>Bony Thorax (A)</p> Signup and view all the answers

Which part of the respiratory system is responsible for voice production?

<p>Larynx (A)</p> Signup and view all the answers

Which part of the respiratory system is located below the vocal folds?

<p>Larynx (B)</p> Signup and view all the answers

What is the main function of the upper respiratory tract?

<p>Warming, cleaning, and humidifying the air (B)</p> Signup and view all the answers

What is the main function of the lower respiratory tract?

<p>Gas exchange with blood (A)</p> Signup and view all the answers

Which part of the respiratory system is responsible for creating an elevated ridge on the anterior surface?

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

Which of the following is true about the rib cage?

<p>The length of the front of the rib cage articulates with the Clavicle bone (A)</p> Signup and view all the answers

Which rib pairs are considered true ribs?

<p>Pairs 1 to 7 (C)</p> Signup and view all the answers

What are rib pairs 8 to 10 considered?

<p>False ribs (B)</p> Signup and view all the answers

What are rib pairs 11 and 12 considered?

<p>Floating ribs (B)</p> Signup and view all the answers

What is the name of the sac that surrounds the lung tissue?

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

What is the layer that touches the lung tissue called?

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

What is the layer lining up the inner surface of the muscles and ribs forming the rib cage called?

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

What is the space between the two layers of the pleural sac called?

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

What is the pressure of air in the bronchial tree called?

<p>Intra-alveolar pressure (A)</p> Signup and view all the answers

When does air flow occur from the atmosphere into the lungs?

<p>When atmospheric pressure is higher than intra-alveolar pressure (C)</p> Signup and view all the answers

Which muscles contract during quiet inhalation?

<p>Diaphragm, External intercostal muscles (B)</p> Signup and view all the answers

What happens during expiration at rest?

<p>The muscles of inhalation relax and the rib cage returns to resting position (B)</p> Signup and view all the answers

What are the muscles of quiet inhalation?

<p>Diaphragm, External intercostal muscles (B)</p> Signup and view all the answers

What is the function of the diaphragm during inhalation?

<p>Draws the periphery closer to the central tendon (D)</p> Signup and view all the answers

Which muscles are activated during accessory respiration?

<p>Sternocleidomastoid, Scaleni, Subclaveus, Pectoralis Major (A)</p> Signup and view all the answers

What is the action of the scaleni muscles?

<p>Bends the neck ventral and lateral (D)</p> Signup and view all the answers

What is the function of the pectoralis major muscle during inhalation?

<p>Brings the arm closer to the body (D)</p> Signup and view all the answers

What muscles are activated during accessory expiration?

<p>Rectus Abdominus, Transversus Abdominus, Internal Oblique Abdominus, External Oblique Abdominus (D)</p> Signup and view all the answers

What is the action of the rectus abdominus muscle during expiration?

<p>Compresses the rib cage and abdomen (C)</p> Signup and view all the answers

What is the action of the transversus abdominus muscle during expiration?

<p>Compresses the rib cage and abdomen (A)</p> Signup and view all the answers

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