GI pathophysiology

Question 1

Describe the process of excitation contraction coupling in smooth muscle

Question 2

Describe the control of peristalsis by the enteric nervous system

Question 3

Describe the characteristics of the spontaneous and stimulated electrical activity of the GI smooth muscles (electrical slow waves, action potentials, and contraction)

Question 4

Describe the major motor patterns in the GI tract and explain their functions during fasting (migrating motor complex) and during digestion

Question 5

Describe the origin and propagation of electrical activity and the progression of peristaltic waves across the body and antrum stomach. Describe their role in mixing and propulsion of gastric contents

Question 6

Describe the pathways activated to initiate vomiting

Question 7

Describe the function of colonic motility, in mediating formation of haustra and haustral shuttling, mass movements through the transverse and distal colon

Question 8

Describe the enzymes secreted from the pancreas and describe their biochemical action

Question 9

Describe the mechanisms that prevent auto-digestion by pancreatic enzymes

Question 10

Describe the neural and endocrine mechanisms which control pancreatic exocrine secretion during the course of a meal

Question 11

Describe the process of how sugars, fatty acids and proteins are absorbed into the bloodstream

Question 12

Describe the secretions involved in digestions

Question 13

Describe the GIT neural mechanisms?

Question 14

Describe the endocrine mechanisms

Question 15

Describe the core symptoms of absorption

Question 16

Describe the processes underlying the defecation reflex

Question 17

Describe the disorders associated with GIT and how spinal cord injury leads to dysfunction of deification