Answer:
The submucosa layer of the GIT contains blood vessels,so it can be the site of inflammation that leads to inflammatory bowel disease.
Step-by-step explanation:
GIT has four layers , 1) mucosa the innermost layer 2) submucosa that is a layer of loose connective tissue that surrounds the mucosa. This layer also contains blood vessels, lymphatic vessels, and nerves. Glands may be embedded in this layer. 3) muscularis propia containing circular and longitudnal muscles 4)adventitia
As long as the blood vessels of the GIT are related, ischemia can cause inflammation that may lead to inflammatory bowel disease.