The walls of the alveoli are composed of two types of cells. name these two types of cell

The walls of the alveoli are composed of two types of cells. name these two types of cell

Related Posts

This Post Has 10 Comments

  1. The correct answer is: Type 1 Pneumocytes, and Type 2 Pneumocytes.

    Explanation:

    The alveoli are structures that form a hollow cavity and are found in the lungs. Alveoli have the very important task of gas exchange, in which deoxygenated blood becomes oxygenated blood to be distributed to every organ in the body.

    Alveoli walls are composed of two types of cells:

    Type 1 Pneumocytes have the function of gas exchange between the capillaries, and for that reason, they are very thin and permeable.Type 2 Pneumocytes have the function to produce surfactant, a substance very important to maintain the elastic recoil of the lungs. Without surfactant, the lungs would collapse.

  2. The answer would be: secrete surfactant

    Type II alveolar cells will secrete surfactant that will reduce the surface tension of the alveoli. A high surface tension will cause the lungs hard to inflate when doing inspiration. Respiratory distress in premature baby mostly caused by surfactant deficiency as their lungs can't produce it. 

  3. The two types are pneumocytes known as type one and type two cells found in the alveolar wall. Type one cells are squamous, thin and flat that form the structure of the alveoli.

    Explanation:

  4. D. secrete surfactant

    Explanation:

    The function of the alveolar type II cells is to secrete a lipoprotein material which is known as surfactant. The primary function of this surfactant is to reduce surface tension in alveoli.

    Surfactant is a type of lipoprotein which is consisting of mainly and some glycoprotein components. The material spreads out over surface of alveoli and thereby, reducing the surface tension by interaction of the hydrophilic parts of surfactant molecule with the water layer next to alveolar cells and by interaction of hydrophobic parts of surfactant with air.

  5. The pulmonary alveoli are tiny air sacs, present in the lungs, surrounded by blood capillaries and a thin membrane. They are lined by a layer of epithelial cells, called pneumocyte type I and pneumocyte type II.

    Type I pneumocytes are pavement cells with a small amount of cytoplasm. This feature facilitates the passage of gases.

    Type II pneumocytes are oval, bulky cells. This type of cell produces a lipoprotein secretion, called a surfactant. Its function is to keep the alveoli open and assist in the diffusion of gases through the alveolar membrane.

    Explanation:

  6. The function of type II alveolar cell is to secrete surfactant.

    Explanation:

    Alveolar type II secrete surfactant which is a lipoprotein substance.The main function of  Surfactant  is  reduce the surface tension in the alveoli.

    Alveolar type II also helps in stabilization.It helps in airway epithelial stabilization.

    It also helps in Immune defense, and airway regeneration in response to injury.

  7. Type I and II.

    Explanation:

    The alveoli are found in the lungs and they helps in taking in oxygen. The alveoli is divided into two types of cells and they the first one is; (1). Type I cell (which covers about 93 - 95 percent of the surface of the aveoli) and (2). Type II cell(which can be used to repair worn our aveoli. The type 1 is used in one of the process alveoli undergoes and that is diffusion that is to say type one helps in gaseous exchange.

  8. Two types are pneumocytes known as type I and type II cells found in the alveolar wall, and a large phagocytic cell known as an alveolar macrophage that moves about in the lumens of the alveoli, and in the connective tissue between them. Type I cells are squamous, thin and flat and form the structure of the alveoli.

    Explanation: Look it up and you will find your answer 🙂

  9. 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.

Leave a Reply

Your email address will not be published. Required fields are marked *