Relfexes Regulating GIT Function

Question 1

Short Reflexes

Answer 1

• Entirely within GIT tract
• Operate locally within the ENS which regulated immediate responses from the GIT
• No CNS involvement
• Distension from the presence of food & chemical changes in the intestine and stomach

Question 2

Long Reflexes ( Cephalic Phase )

Answer 2

• Involves CNS
• Vagus nerve stimulates submucosal plexus, which causes contraction of smooth muscle in the gut