What condition is associated with mechanical bowel obstruction?

Mechanical bowel obstruction occurs when there is a physical blockage in the intestine, preventing the normal passage of contents. Adhesions, which are bands of fibrous tissue that can form after surgery or due to inflammation, are a common cause of such obstructions. These adhesions can create narrow points in the intestinal lumen, leading to a complete or partial blockage.

In contrast, hypokalemia involves low potassium levels in the blood, which can affect muscle function, including that of the intestines, but it does not directly cause a mechanical obstruction. Functional dyspepsia refers to a group of symptoms often associated with gastric distress, but like hypokalemia, it doesn't create an obstruction in the bowel. Chronic constipation can lead to complications, but it typically does not result in a mechanical obstruction caused by external pressure or physical blockage. Therefore, adhesions are particularly significant in the context of mechanical bowel obstruction, making them the correct answer.