Nicotien or anything chemical which stimulates the Nicotinic receptors.
Fiber
The nutrient that is not digested but stimulates intestinal muscle contractions is fiber. Fiber is a type of carbohydrate that may be soluble or insoluble.
Acetylcholine
Oxytocin
cholecystokinin is the hormone
gip
Oxytocin
Different types of muscle contractions
Segmentation- series of stationary rhythmic contractions and relaxations of rings of intestinal smooth muscle; mixes intestinal contents. Segmentation mixes the cyme with intestinal secretions and brings it into repeated contact with the absorptive epithelium. The slow passage insures nutrient absorption.
Isotonic contractions. This happens when the muscle shortens as it contracts
enterocrinin
Yes
Peristaltic contractions proceed along length of intestine for variable distance and cause chyme to move along small intestine. Segmental contractions are propagated for only short distance and mix intestinal contentsperistalsis and segmental movements