• 2022-06-11
    Which of the following is NOT true of the alveolar sac()
    A: Directly communicates with the alveolar duct
    B: Has an interrupted wall represented by knobs between adjacent
    alveoli
    C: The space surrounded and opened by many alveoli
    D: Connective tissue fibers encircle the openings of the alveoli
    E: Smooth muscle disappears in this segment
  • B

    举一反三

    内容

    • 0

      1. When the diameter of the fine particles in the sputum is 10 microns, it can directly enter the alveoli and bronchioles of the human body, stimulating the bronchoconstriction, affecting the ventilation function of the alveoli and causing hypoxia induced by the body.

    • 1

      In which of the following locations do coarse crackles mainly occur? A: Bronchiole B: Main bronchus C: Bronchia D: Alveoli E: Terminal bronchioles

    • 2

      Dead space like ventilation refer to () A: decrease<br/>of partial alveolar ventilation B: increase<br/>of partial alveolar VA/Q C: increase<br/>of partial alveolar ventilation D: decrease<br/>of partial alveolar VA/Q E: increase<br/>of anatomic shunt

    • 3

      What type of tissue lines the alveoli in the lung A: Simple squamous epithelium B: Simple cuboidal epithelium C: Simple columnar epithelium D: Stratified squamous epithelium E: Pseudostratified epithelium

    • 4

      The<br/>main structural features of the wall of the large arteries are:() A: more elastic membrane and cartilage B: more elastic fibers and collagen fibers C: more elastic membrane and elastic fibers D: more elastic fibers and smooth muscle fibers E: more collagen fibers