Development of the Respiratory System Quiz
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Questions and Answers

Which layer of the gut tube forms the inner layer of the lung bud?

  • Endoderm (correct)
  • Mesoderm
  • Epidermis
  • Ectoderm

    • What is the outer layer of the lung bud composed of?

  • Ectoderm
  • Endoderm
  • Epidermis
  • Mesoderm (correct)

    • Which of the following structures develop from the lung bud?

  • Liver and spleen
  • Heart and blood vessels
  • Larynx and trachea (correct)
  • Kidneys and bladder

    • What is the name of the ventral extension of the gut tube that forms the lung bud?

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

    What is the main component of the lung bud?

    <p>Epithelium and glands</p> Signup and view all the answers

    What determines the viability of a pre-term fetus in terms of respiratory development?

    <p>Development of alveoli</p> Signup and view all the answers

    Which of the following conditions is associated with a tracheoesophageal fistula?

    <p>Esophageal atresia</p> Signup and view all the answers

    What is the term for the condition where the diaphragm is weak and elevated?

    <p>Eventration of the diaphragm</p> Signup and view all the answers

    Which layer of the gut tube forms the inner layer of the lung bud?

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

    What is the outer layer of the lung bud composed of?

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

    Which embryonic layer gives rise to the epithelium and glands of the larynx?

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

    Which structures give rise to the muscles and cartilages of the larynx?

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

    During development, what is the only communication between the pharynx and the lower respiratory passages?

    <p>Laryngeal orifice</p> Signup and view all the answers

    Which part of the lower respiratory passages maintains patency with the gut?

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

    From which embryonic layer does the trachea form?

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

    What separates the tracheal portion of the airways from the esophageal portion of the gut?

    <p>Tracheoesophageal septum</p> Signup and view all the answers

    Which structures give rise to the muscles and connective tissues of the bronchi?

    <p>Splanchnic lateral plate mesoderm</p> Signup and view all the answers

    What structures form from the somatic and splanchnic layers of the lateral plate mesoderm-lined body cavity?

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

    What are the membranes that surround the lungs called?

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

    What is the major source of tissue for the formation of the diaphragm?

    <p>Septum transversum</p> Signup and view all the answers

    Which of the following is NOT a source of tissue for the formation of the diaphragm?

    <p>Esophageal mesentery</p> Signup and view all the answers

    Which source of tissue is considered the most important for the formation of the diaphragm?

    <p>Septum transversum</p> Signup and view all the answers

    Study Notes

    Lung Development

    • The endoderm layer of the gut tube forms the inner layer of the lung bud.
    • The outer layer of the lung bud is composed of splanchnic mesoderm.
    • The lung bud develops into the bronchi, bronchioles, and alveoli.
    • The ventral extension of the gut tube that forms the lung bud is called the respiratory diverticulum.
    • The main component of the lung bud is the endoderm.

    Respiratory Development

    • The viability of a pre-term fetus is determined by the development of the respiratory system.
    • A tracheoesophageal fistula is associated with esophageal atresia.
    • The condition where the diaphragm is weak and elevated is called diaphragmatic eventration.

    Laryngeal Development

    • The epithelium and glands of the larynx develop from the endoderm layer.
    • The muscles and cartilages of the larynx develop from the fourth and sixth pharyngeal arches.

    Developmental Connections

    • During development, the only communication between the pharynx and the lower respiratory passages is the pharyngotracheal tube.
    • The trachea maintains patency with the gut.

    Tracheal Development

    • The trachea forms from the endoderm layer.
    • The tracheal portion of the airways is separated from the esophageal portion of the gut by the tracheoesophageal septum.

    Bronchial Development

    • The muscles and connective tissues of the bronchi develop from the somatic layer.

    Diaphragmatic Development

    • The diaphragm forms from the septum transversum, the pleuroperitoneal folds, and the dorsal mesentery of the esophagus.
    • The major source of tissue for the formation of the diaphragm is the septum transversum.
    • The lateral plate mesoderm is not a source of tissue for the formation of the diaphragm.
    • The septum transversum is considered the most important source of tissue for the formation of the diaphragm.

    Pleural Membranes

    • The membranes that surround the lungs are called the pleural membranes.

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    Related Documents

    Development_of_the_Respiratory_System_Ford_2023.pptx

    Description

    Test your knowledge on the development of the respiratory system with this quiz. Learn about the early development of the lower respiratory system, diaphragm, larynx, trachea, bronchial tree, and alveoli. Explore the critical steps that determine the viability of a pre-term fetus.

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