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The walls of the alveoli are composed of two types of cells, type I and type II alveolar cells. The function of type II alveolar cells is to ________. The walls of the alveoli are composed of two types of cells, type I and type II alveolar cells. The function of type II alveolar cells is to ________. replace mucus in the alveoli protect the lungs from bacterial invasion trap dust and other debris secrete surfactant

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Answer:

The walls of the alveoli are composed of two types of cells, type I and type II alveolar cells. The function of type II alveolar cells is to secrete surfactant.

Explanation:

Type II cells have great importance in the synthesis, storage, and secretion of lung surfactant, which acts to reduce surface tension and prevent collapse of the alveoli, reducing the pulmonary tension, it helps the respiratory mechanics, minimizing the energy that the lung tissue must provide to keep the gas exchange surface open and exposed during successive inspiration-expiration cycles. Type II cells comprise up to 14% of all alveolar epithelial cells.

Histrionicus

The function of type II alveolar cells is to - secrete surfactants.

The walls of the alveoli are composed of two types of cells, type I and type II alveolar cells

  • Type 2 pneumocytes are the progenitors of type 1 cells and are responsible for surfactant production and homeostasis.
  • Type I alveolar cells are involved in the process of gas exchange between the alveoli and blood.
  • Type II alveolar cells are involved mainly in the secretion of surfactant proteins.
  • Four major functions have been attributed to alveolar type II cells:
  1. secretion of surfactant
  2. xenobiotic metabolism
  3. transepithelial movement of water
  4. regeneration of the alveolar epithelium following lung injury.

Thus, The function of type II alveolar cells is to - secrete surfactants.

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