Pulmonary alveolus thin fluid coating within all alveoli. The fluid coating is produced by the body in order to facilitate the transfer of gases between blood and alveolar air. The surfactant is produced by the type II cells which are the most numerous cells in the alveoli, yet do not cover as much surface area as the squamous alveolar cells (a squamous epithelium). Type II cells also repair the endothelium of the alveolus when it becomes damaged. Insufficient surfactant in the alveoli can contribute to atelectasis (collapse of part or all of the lung). Without pulmonary surfactant, atelectasis is a certainty; however,
Catholic theology of the body body, thus helping human beings to recognize their destination in God. Only by subjugating one’s will to the will of God, can this destination be reached, according to Irenaeus. Irenaeus believed that the first humans, Adam and Eve had a childlike relation to their body. They had no idea of evil, concupiscence and lust. They enjoyed a balanced sexuality, not ashamed as they kissed or hugged each other. According to Irenaeus, the fall was a result of a childish lack of discretion, which made Adam susceptible to the devil and led him into disobedience to God. The fall was a