Stomach motility (Multiple Choice)

Stomach motility
  a. decreases following a heavy meal.
  b. controls the amount of material leaving the pyloric sphincter.
  c. is unaffected by emotional state or external environmental factors.
  d. may be retarded when stretch receptors on the stomach wall are activated.
  e. is increased by hormones released in response to high stomach acidity.

Question 2

Heartburn is caused by
  a. HCl sloshing back into the esophagus.
  b. pepsin sloshing back into the esophagus.
  c. pepsinogen sloshing back into the esophagus.
  d. chymotrypsin sloshing back into the esophagus.
  e. intrinsic factor sloshing back into the esophagus.