NEET BIOLOGY

Detailed explanation-1: -The intestinal barrier is a semipermeable structure that allows the uptake of essential nutrients and immune sensing, while being restrictive against pathogenic molecules and bacteria.

Detailed explanation-2: -Mesentery. The mesentery is a membrane that suspends the small intestine from the back of the abdominal wall. It supports the blood vessels, nerves and lymph vessels that supply the small intestine.

Detailed explanation-3: -Intestinal permeability That means their guts let more than water and nutrients through-they “leak”. Studies have shown that people who have certain chronic gastrointestinal diseases have leaky guts that let larger molecules through-potentially toxic ones.

Detailed explanation-4: -The mucosa, or mucous membrane layer, is the innermost tunic of the wall. It lines the lumen of the digestive tract. The mucosa consists of epithelium, an underlying loose connective tissue layer called lamina propria, and a thin layer of smooth muscle called the muscularis mucosa.