Regarding the chemical events in digestion, which of the following forms chylomicrons?
Maltase, sucrase, and lactase are carbohydrases produced by the
C)parotid salivary gland.
Which of the following changes in the digestive system occurs with advancing age?
A)increase in smooth muscle tone
B)decreased cancer rates
C)decline in epithelial stem cell division
D)thickening of the stratified epithelium
E)increased osmoreceptor sensitivity
Dave is under a lot of stress at his job and at home. Lately, he has begun to feel discomfort and a burning sensation in his abdomen following each meal. After consulting a doctor, he finds that he has developed a duodenal ulcer. He does not understand how being nervous would cause the ulcer. Explain the cause and effect in his case.