ANATOMY

Detailed explanation-1: -Intestinal juices are secreted through small holes in villi and are poured into the lumen of the intestine.

Detailed explanation-2: -Intestinal juice or succus entericus is the alkaline yellowish watery fluid released by the glands lining the inner wall of the small intestine.

Detailed explanation-3: -intestinal juice A slightly alkaline liquid containing mucus that is secreted into the lumen of the small intestine from the cells that line the crypts of Lieberkühn.

Detailed explanation-4: -The duodenum produces hormones and receives secretions from the liver (bile) and pancreas (pancreatic juice containing digestive enzymes). These various hormones, fluids and enzymes facilitate chemical digestion in the duodenum while also ensuring the acidity of chyme coming from the stomach is neutralised.