Case study histology 2 Example | Topics and Well Written Essays - 1000 words

Histology 2 - Case Study Example The colon is also masculine to aid in movement of food through the esophagus. The muscles contract and relax rhythmically to facilitate peristalsis. The colon is also long this ensures nutrients remain in the colon for long period to maximize absorption. The reddish appearance of the colon indicates presence of blood capillaries. Capillaries bring in oxygen for oxidation and takes away absorbed food. (Odze & Goldblum 2009, p. 10) It has a pouch like projection called cecum that collects undigested food from the ileum. It is the first section of the large intestine. Cecum has a valve that separates it from the ileum. The valve regulates the amount of food getting into the cecum and prevents backflow of food into the ileum. The main function of the cecum is to absorb water and salts. The epithelium of the colon is thin. It enables food to diffuse through the colon at a higher rate. The colon also has gland that resembles test tubes on their walls called crypts of Lieberkà ¼hn. The crypts are embedded in the epithelial lining to enable them secrete enzymes which in turn secrete mucous to lubricate the colon. In addition to this, crypts secrete hydrochloric Acid which kills any bacteria in the nutrients (Odze & Goldblum 2009, p. 66). The colon has a lining called mucosa. Mucosa secretes mucus which lubricates the colon to aid in peristalsis. The epithelium lining of the colon also has various goblet cells which secrete mucus. The mucus is used neutralize acid in the stomach. In addition to this, the mucus hinders enzymes from digesting the internal walls of the colon (Wolff 2010, p. 33) Crohns disease is a type of inflammatory bowel disease. It mostly affects the intestine though it can affect any part from the mouth to anus. It is associated with the fistulae and ulcers. Crohns disease compels the immune system to attack healthy cells within gastrointestinal tract leading to inflammation. It is usually classified as