Problem: There's a strong link between psoriasis and inflammatory bowel disease, or IBD. IBD includes Crohn's disease and ulcerative colitis (UC). Crohn's can affect any part of the stomach and intestines; UC usually affects the large intestine. If a psoriatic person were to develop Crohn's disease which digestive processes might be affected? What about ulcerative colitis? And what additional evidence would you need to provide a higher level of specificity in what process will be disrupted? Explain using structure and function.