Flashcards in this deck (15)

• What are the three phases of gastric secretion?

  • Cephalic
  • Gastric
  • Intestinal
  biology gastric_secretion
• What percentage of gastric juice is secreted during the cephalic phase?

  About one third
  biology gastric_secretion
• What accounts for the majority of gastric acid secretion during the gastric phase?

  About two thirds
  biology gastric_secretion
• What are the four stimuli for the cephalic phase of gastric secretion?

  • Sight of food
  • Thought of food
  • Smell of food
  • Taste of food
  biology gastric_secretion
• Where does the sight of food send information in the brain?

  To the occipital lobe, then to the hypothalamus and medulla
  biology gastric_secretion
• Which nerve carries taste information from the anterior two-thirds of the tongue?

  The facial nerve
  biology gastric_secretion
• Which nerve carries taste information from the posterior one-third of the tongue?

  The glossopharyngeal nerve
  biology gastric_secretion
• What is the dorsal nucleus of the vagus nerve abbreviated as?

  D and V
  anatomy nervous_system
• What are the parts of the stomach?

  • Cardia
  • Fundus
  • Corpus (Body)
  • Antrum
  • Pylorus
  anatomy digestive_system
• What does the vagus nerve stimulate in the stomach?

  • Parietal cells
  • Chief cells
  physiology digestive_system
• What chemical does the vagus nerve stimulate the stomach to produce?

  • Hydrochloric acid (HCl)
  • Pepsinogen
  physiology digestive_system
• What inhibits gastric secretions?

  Activation of the sympathetic nervous system
  physiology nervous_system
• What is the role of the sympathetic nervous system in gastric secretion?

  It inhibits gastric acid secretion.
  physiology nervous_system
• What is the role of the parasympathetic nervous system in gastric secretion?

  It increases hydrochloric acid and pepsin secretion.
  physiology nervous_system
• How can you decrease hydrochloric acid production?

  By inhibiting vagal nerve stimulation.
  biology physiology