Segmentation is a muscle action that mixes chyme with digestive juices, while Peristalsis is a muscle action that moves food through the digestive system.
The muscle action that mixes chyme with digestive juices throughout the digestive system is called Peristalsis. Peristalsis are wave-like of contractions and expansions of muscles. The muscles help to move the bolus (food) through the digestive tract. Peristalsis are located all over the digestive tract.
Because it mixes with the acids and juices in your body.
Segmentation in the digestive tract mixes food with digestive juices and increases the rate of absorption by repeatedly moving different parts of the food mass over the intestinal wall.
I suppose that the reaction between fruit/vegetables juices and hydrochloric acid from the stomach are not so important. Juices can increase the acidity in stomach.
Chyme
The muscularis externa is the layer of the digestive tube, which consists of smooth muscles. It mixes ingested food with gastric juices so digestion is able to occur.
The large pear-shaped bag in the upper part of the belly is called the stomach. It mixes swallowed food with digestive juices such as enzymes and acids to break down food particles into smaller molecules for absorption in the intestines.
The stomach is a stretchy muscular sac that holds food where it mixes with digestive juices. It plays a key role in the digestion process by breaking down food into smaller particles that can be absorbed by the body.
Peristalsis is the primary movement responsible for moving chyme back and forth in the GI system. This wave-like muscle contraction helps push food along the digestive tract and mixes it with digestive enzymes for proper digestion and absorption of nutrients.
they drink a lot of teas, coffee, yogurt mixes, and fruit juices/ smoothies
The small intestine. The mouth mashes food with the teeth and mixes it with saliva which also includes some acid compounds.
When food is consumed, it mixes with digestive juices like hydrochloric acid and enzymes in the stomach. The reactants include food components such as proteins, carbohydrates, and fats, along with the digestive juices. The products of this chemical reaction are smaller molecules like amino acids, glucose, and fatty acids that can be absorbed by the body for energy and other functions.