A compound secreted by the lungs that contribute to the elastic properties of the pulmonary tissues is a surfactant.
Type II alveolar cells are involved in the making of pulmonary surfactants. Pulmonary surfactant is made of phospholipids and proteins.
One of the major functions of the pulmonary surfactant is to promote pulmonary compliance. Pulmonary compliance can be described as the ability of the lung to expand. Hence, pulmonary surfactants contribute to the elastic properties of the pulmonary tissues.
By promoting the elastic properties of the pulmonary tissues, the surfactants help in the process of respiration by providing more space for air to be breathed in.
Another important function of the pulmonary surfactant is to stop the lungs from collapsing.
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