An idiopathic disease affecting this organ is often treated using nintedanib or pirfenidone. The severity of another disease primarily affecting this organ is classified into five stages, including a bilateral hilar stage, by the (-5[1])Scadding scale. The basement membranes of a (-5[1])kidney’s (15[1])glomeruli (15[1])and this organ are targeted by anti-GBM antibodies in Goodpasture syndrome. (15[1])In this organ, one group (-5[1])of cuboidal cells (-5[1])secretes (15[1])a substance rich in (*) DPPC (10[5])to (10[1])protect (10[4])from (10[2])atelectasis (10[3])and reduce surface tension. (10[3]-5[1])A hyaline (10[2])membrane (10[1])lines this organ in premature newborns (10[1])suffering from (10[1])infant (10[1])RDS. (10[1])Spirometry (10[3])assesses the function (10[1])of this (10[2])organ, (10[2])which becomes damaged in conditions such as anthracosis and emphysema. (10[4])For 10 points, (10[1])name this organ containing sacs (10[1])called alveoli (10[1])that facilitate gas exchange. ■END■ (10[2])