In cystic fibrosis, what do thick and sticky secretory juices obstruct?

In cystic fibrosis, the thick and sticky secretory juices primarily obstruct passageways, ducts, and tubes within the body. This condition affects various organs, especially the lungs and the digestive system, due to the accumulation of mucus in these areas. In the lungs, the obstruction leads to breathing difficulties and recurrent infections because the mucus can block airways and trap bacteria. In the digestive system, obstruction of ducts can hinder the pancreas from delivering enzymes necessary for digestion, resulting in malnutrition and gastrointestinal issues. This characteristic of cystic fibrosis is central to understanding the disease’s impact on bodily functions and the complications that arise from mucus blockages.