Unit 6: The Respiratory System - Functions and Gas Exchange
40 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is NOT a function of the respiratory system?

  • Facilitating speech and vocalization
  • Expulsion of abdominal contents during childbirth
  • Maintaining acid-base balance in the blood
  • Digestion of food particles (correct)

    • Which part of the respiratory system is lined with respiratory epithelium of the ciliated, pseudostratified columnar type?

  • Nasal cavity (correct)
  • Trachea
  • Alveoli
  • Larynx

    • What is the primary function of the Valsalva maneuver in the respiratory system?

  • Regulating acid-base balance in the blood
  • Aiding in the expulsion of abdominal contents (correct)
  • Facilitating gas exchange in the lungs
  • Enhancing the sense of smell

    • Which statement best describes the importance of the respiratory system as a homeostatic mechanism?

    <p>It ensures that the concentrations of oxygen and carbon dioxide are sufficient to meet the body's demands</p> Signup and view all the answers

    Which of the following is NOT an organ of the respiratory system?

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

    Which of the following is the primary function of the larynx?

    <p>To prevent food and drink from entering the airway</p> Signup and view all the answers

    What type of epithelium lines the nasopharynx?

    <p>Pseudostratified columnar epithelium</p> Signup and view all the answers

    Which of the following structures is located in the nasopharynx?

    <p>Pharyngeal tonsil</p> Signup and view all the answers

    What is the primary role of the oropharynx?

    <p>To serve as a passageway for both food and air</p> Signup and view all the answers

    Which of the following cartilages is the largest in the larynx?

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

    Which of the following statements about the bronchial tree is correct?

    <p>The main bronchi branch into lobar bronchi that supply each lobe of the lungs.</p> Signup and view all the answers

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

    <p>To provide airflow to the respiratory zone</p> Signup and view all the answers

    Which of the following statements about the alveoli is incorrect?

    <p>Alveoli are the primary site for gas exchange in the respiratory system.</p> Signup and view all the answers

    What is the correct sequence of airflow in the respiratory system?

    <p>Nasal cavity → pharynx → trachea → bronchi → bronchioles → alveoli</p> Signup and view all the answers

    Which of the following cell types is responsible for producing surfactant in the alveoli?

    <p>Great alveolar cells</p> Signup and view all the answers

    What is the function of the paranasal sinuses?

    <p>Increasing the resonance of speech</p> Signup and view all the answers

    Which bones form the roof and walls of the nasal cavity?

    <p>Ethmoid and sphenoid bones</p> Signup and view all the answers

    What is the purpose of the nasal conchae in the nasal cavity?

    <p>To cause airflow to be turbulent</p> Signup and view all the answers

    How does the hard palate differ from the soft palate?

    <p>The hard palate is bony while the soft palate is fleshy</p> Signup and view all the answers

    What sweeps sticky mucus into the pharynx in the respiratory system?

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

    Which of the following is NOT a function of alveolar macrophages?

    <p>Secreting pulmonary surfactant</p> Signup and view all the answers

    What is the primary function of alveolar pores?

    <p>To connect adjacent alveoli</p> Signup and view all the answers

    Which of the following statements about the pleura is incorrect?

    <p>The pleura is responsible for secreting pulmonary surfactant.</p> Signup and view all the answers

    What is the primary function of the respiratory mucosa?

    <p>To protect the respiratory system from pathogens and particles</p> Signup and view all the answers

    Which of the following structures is NOT involved in gas exchange?

    <p>Alveolar pores</p> Signup and view all the answers

    Which of the following is NOT a function of the visceral pleura?

    <p>Protects the lungs from external pathogens</p> Signup and view all the answers

    What is the primary function of the bronchial arteries?

    <p>To nourish the tissues of the lungs with oxygen and nutrients</p> Signup and view all the answers

    Which of the following statements about external respiration is correct?

    <p>It refers to the loading of oxygen into the blood and the unloading of carbon dioxide from the blood in the alveoli</p> Signup and view all the answers

    During cellular (aerobic) respiration, where does the oxidation of pyruvate occur?

    <p>In the mitochondria</p> Signup and view all the answers

    What is the primary function of the respiratory mucosa?

    <p>To protect the respiratory system from pathogens and irritants</p> Signup and view all the answers

    Which of the following is the primary function of the epiglottis during swallowing?

    <p>To prevent food and liquid from entering the trachea</p> Signup and view all the answers

    What is the primary function of the cilia in the trachea?

    <p>To trap and remove foreign particles from the respiratory tract</p> Signup and view all the answers

    Which of the following structures is primarily responsible for producing sound during speech?

    <p>Vocal cords</p> Signup and view all the answers

    What is the primary function of the hyaline cartilage rings in the trachea?

    <p>To prevent the trachea from collapsing during inhalation</p> Signup and view all the answers

    Which of the following structures is responsible for carrying air from the trachea to the gas-exchange surfaces in the lungs?

    <p>Bronchial tree</p> Signup and view all the answers

    Which of the following is the primary function of the respiratory system as a homeostatic mechanism?

    <p>To facilitate the exchange of gases between the body and the environment</p> Signup and view all the answers

    Which of the following structures is responsible for filtering, warming, and humidifying the incoming air during respiration?

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

    Which of the following is NOT a function of the respiratory mucosa?

    <p>Producing sound during speech</p> Signup and view all the answers

    Which of the following structures is primarily responsible for protecting the lower respiratory tract from foreign particles during swallowing?

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

    Which of the following is the correct order of the structures through which air passes during inhalation?

    <p>Nasal cavity → Larynx → Trachea → Bronchial tree → Lungs</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser