Human Physiology Chapter 8: Respiratory System I
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Questions and Answers

What is the uppermost part of the lung called?

  • Hilum
  • Cardiac notch
  • Cupola
  • Apex (correct)

    • What is the indentation through which blood vessels, main bronchi, lymphatic vessels, and nerves enter and leave the lungs?

  • Cardiac notch
  • Cupola
  • Apex
  • Hilum (correct)

    • What is the concavity in the left lung that accommodates the heart?

  • Cardiac notch (correct)
  • Apex
  • Hilum
  • Cupola

    • What is the smallest visible lung subdivision?

    <p>Lobule</p> Signup and view all the answers

    What type of tissue supports the lung's functional structures?

    <p>Stroma</p> Signup and view all the answers

    What is the surface of the lung in contact with the thoracic wall called?

    <p>Costal surface</p> Signup and view all the answers

    What is the outer part of the balloon representative of in the analogy?

    <p>Parietal pleura</p> Signup and view all the answers

    What is the function of the pleural fluid in the pleural cavity?

    <p>To act as a lubricant, ensuring minimal friction during breathing</p> Signup and view all the answers

    How many chambers does the Pleura divide the thoracic cavity into?

    <p>3</p> Signup and view all the answers

    What is the visceral pleura a part of?

    <p>The same membrane as the parietal pleura</p> Signup and view all the answers

    What type of epithelium is found in the superior portion of the larynx?

    <p>Stratified squamous</p> Signup and view all the answers

    What is the space between the two layers of pleurae?

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

    What type of cartilage is the epiglottis composed of?

    <p>Elastic cartilage</p> Signup and view all the answers

    What is the function of the vocal ligaments?

    <p>To attach the arytenoid cartilages to the thyroid cartilage</p> Signup and view all the answers

    What is the inner part of the balloon representative of in the analogy?

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

    What determines the pitch of a person's voice?

    <p>The length and tension of the vocal cords</p> Signup and view all the answers

    What is the function of the glottis?

    <p>To allow air to pass through the vocal cords</p> Signup and view all the answers

    What is the purpose of Valsalva's maneuver?

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

    What is the primary function of internal respiration?

    <p>Producing energy by oxidizing glucose or other small molecules</p> Signup and view all the answers

    What is the term for the process of taking oxygen from the air and returning carbon dioxide?

    <p>External respiration</p> Signup and view all the answers

    How many times does a relaxed adult breathe on average per minute?

    <p>15 times</p> Signup and view all the answers

    What is the primary function of the respiratory system in relation to the circulatory system?

    <p>Providing oxygen to the bloodstream and removing carbon dioxide</p> Signup and view all the answers

    What is the term for the process of exchanging oxygen and carbon dioxide between the air and the blood in the lungs?

    <p>Gas exchange</p> Signup and view all the answers

    What is the approximate volume of air ventilated by a relaxed adult in one minute?

    <p>6 liters</p> Signup and view all the answers

    What is one of the functions of the separation between the thoracic cavity and the abdominal cavity?

    <p>To help prevent the mobile organs from interfering with each other</p> Signup and view all the answers

    What is the name of the tubes that originate from the primary bronchi and supply air to the lobes of the lungs?

    <p>Secondary bronchi</p> Signup and view all the answers

    Which of the following statements about the primary bronchi is TRUE?

    <p>They are supported by incomplete rings of cartilage</p> Signup and view all the answers

    What is the name of the smallest airways that eventually lead to the alveoli?

    <p>Respiratory bronchioles</p> Signup and view all the answers

    How many lobes and secondary bronchi does the right lung have?

    <p>Three lobes and three secondary bronchi</p> Signup and view all the answers

    What is the name of the structure that the primary bronchi enter the lungs with?

    <p>Hilum</p> Signup and view all the answers

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