What is the correct description of cystic fibrosis?

Cystic fibrosis is a genetic disorder caused by mutations in the CFTR gene, leading to the production of a protein that regulates salt and water movement across cell membranes. This results in the secretion of thick, sticky mucus in various organs, especially the lungs and digestive system. The excessive mucus can block airways, making it difficult for individuals to breathe and increasing the risk of lung infections. It also impacts the pancreas, leading to difficulties in digesting food properly.

The description captures the essence of cystic fibrosis clearly by noting the inherited nature of the disease and emphasizing the problematic thick mucus that leads to blockages within the respiratory and digestive systems. Understanding this is crucial for medical professionals in diagnosing and treating the condition effectively, as proper management often focuses on maintaining clear airways and facilitating digestion.