Guyton and Hall Physiology 04
submerged in inert oil. An oxygen value of 10 mm Hg is recorded. The distal duodenum at the same location is then treated with the vasodilator, adenosine. Which value of oxygen is most likely in the tip of the villus within 2 minutes after treatment with adenosine (in mm Hg)? A) 0 B) 5 C) 7 D) 10 E) 12 57. One of the following hormones can stimulate growth of the intestinal mucosa, and two other hormones can stimulate pancreatic growth. Which three hormones are these? Gastrin Secretin Cholecystokinin GIP Motilin A) No Yes Yes Yes No B) Yes No Yes No Yes C) Yes No Yes Yes No D) Yes No Yes Yes No E) Yes Yes Yes No No 58. A 65-year-old man eats a healthy meal consisting of 30% carbohydrates, 20% fats, and 50% proteins. Approximately 40 minutes later, the ileocecal sphincter relaxes, and chyme moves into the cecum. Gastric distention leads to relaxation of the ileocecal sphincter by way of which reflex? A) Enterogastric B) Gastroileal C) Gastrocolic D) Intestino-intestinal E) Rectosphincte
