Question

When the diet lacks fiber and the volume of residues in the colon is small, the colon narrows and its contractions become more powerful, increasing the pressure on its walls. This promotes formation of __________.

A. irritable bowel syndrome (IBS)
B. gallstones
C. diverticula
D. cystic fibrosis

Answer 1

The increased pressure in the colon due to a lack of fiber in the diet promotes the formation of diverticula, which can lead to diverticulosis and, when inflamed, to diverticulitis.

Step-by-step explanation:

When the diet lacks fiber and the volume of residues in the colon is small, leading the colon to narrow and its contractions to become more powerful, this promotes the formation of diverticula.

Diverticula are saclike bulges of the intestinal wall that can occur when the muscles of the large intestine have to contract more forcefully to move small amounts of residue. This can lead to a condition known as diverticulosis, and when these pouches become inflamed, the condition is referred to as diverticulitis. Diverticulitis is a significant concern, particularly in individuals with a low-fiber diet, as it can lead to symptoms like abdominal pain, fever, and changes in bowel habits. Maintaining a diet rich in fiber can soften stool, decrease colon pressure, and optimize colon function, potentially reducing the risk of developing diverticula.