Respiratory System Anatomy Quiz
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Questions and Answers

What is the main function of the respiratory system?

  • Provides oxygen for cellular respiration (correct)
  • Filters out pathogens from the air
  • Regulates the volume of air that enters the lungs
  • Controls the acid-base balance
  • Where are the vocal cords located?

  • Nasopharynx
  • Trachea
  • Larynx (correct)
  • Oropharynx
  • What structure closes the trachea while swallowing food?

  • Septum
  • Conchae
  • Eustachian tubes
  • Epiglottis (correct)
  • What is the main purpose of the conchae in the nose?

    <p>Regulate air flow</p> Signup and view all the answers

    Why does cold air slow down the cilia in the respiratory system?

    <p>To decrease the beating motion of cilia</p> Signup and view all the answers

    Which part of the respiratory system connects to the ears via the Eustachian tubes?

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

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

    <p>To clean debris and kill pathogens</p> Signup and view all the answers

    Which lung has a spot for the heart called the cardiac notch?

    <p>Left lung</p> Signup and view all the answers

    What does the pulmonary artery carry to the lungs?

    <p>Deoxygenated blood</p> Signup and view all the answers

    Which pressure allows the lungs to remain inflated?

    <p>Intrapleural pressure</p> Signup and view all the answers

    Which muscle is primarily responsible for quiet breathing?

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

    What is the term for air that never reaches the alveoli?

    <p>Anatomical dead space</p> Signup and view all the answers

    What is tidal volume (TV) a measurement of?

    <p><strong>Amount of air entering the lungs during quiet breathing</strong></p> Signup and view all the answers

    What is the main consequence of hyperventilation?

    <p>Increase in blood pH</p> Signup and view all the answers

    At what altitude does Acute Mountain Sickness (AMS) typically occur?

    <p>8000 ft</p> Signup and view all the answers

    What is the main method to treat Acute Mountain Sickness (AMS)?

    <p>Descend to a lower altitude</p> Signup and view all the answers

    What is the purpose of acclimatization when adjusting to higher altitudes?

    <p>To adjust to lower oxygen levels over time</p> Signup and view all the answers

    What is the significance of fetal breathing movements around week 20 of development?

    <p>Good sign of health</p> Signup and view all the answers

    Why does exercise pose a challenge at higher altitudes according to the text?

    <p>Low oxygen reserve in veins</p> Signup and view all the answers

    What is the function of the dorsal respiratory group (DRG) located in the medulla oblongata?

    <p>Sends signals to the diaphragm and intercostal muscles to contract</p> Signup and view all the answers

    What is the role of the apneustic center located in the pons?

    <p>Stimulates the DRG</p> Signup and view all the answers

    What happens in the blood when carbon dioxide levels rise?

    <p>Breathing is increased to lower pH</p> Signup and view all the answers

    What is the primary role of peripheral chemoreceptors in breathing?

    <p>Detect a decrease in oxygen and increase ventilation</p> Signup and view all the answers

    What is controlled by the limbic system concerning respiratory rate?

    <p>Adjustment due to pain, emotions, and temperature</p> Signup and view all the answers

    Which law states that gases exert pressure independently, and the sum of each gas's pressure equals total pressure?

    <p>Dalton's Law</p> Signup and view all the answers

    In which part of the body does external respiration occur?

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

    Which statement is correct about oxygen transfer from mother to fetus?

    <p>The pressure difference between mother and fetus is larger than between mother and atmosphere.</p> Signup and view all the answers

    What causes hyperpnea?

    <p>Increase in rate and depth of ventilation to meet oxygen demands.</p> Signup and view all the answers

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