Answer:
Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation. Airflow increased as predicted.
Explanation:
Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:
(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and
(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.
Answer:
A trade association is the kind of international organization that would most benefit this nation.
Explanation:
Small nations generally do not have large economic output or global supremacy in the production of any specific or specific service. Therefore, its presence and importance in world markets is not so important, and in case it needs to compete with larger nations, it cannot do it by its own means because it does not have the necessary economic volume to affirm its presence in the market.
Therefore, to help these nations stabilize economically and commercially, the largest and most dominant nations often enter into trade agreements with them to help them progress.
The United States sent Matthew Perry and seven warships to Japan to sign the Convention of Kanagawa, the treaty allowing trade between the United States and Japan.