Basic Concepts of Regulating Digestive Activity

What are the three concepts that regulate digestive activity

1) digestive activity is provoked by a range of mechanical and chemical stimuli

2) Effectors of digestive activity are smooth muscles and glands

3) neurons and hormones control digestive activity

What are the mechanical and chemical stimuli that controls digestive activity

Stretching of an organ, changes in osmolarity and pH, the presence of substrates and the end products of digestion

What does smooth muscles stimulation do for digestion

The smooth muscles contract the GI walls and mix lumen contents and move them along the tract

How does the nervous system control digestion

Intrinsically (short reflex arcs) and extrinsically (lone reflexes)