You can view samples of our professional work here. Congo red) and tattooing as stated by…. Histology @ Yale. 2016). Copyright © 2000-2020 Dreamstime. Medical Registered office: Venture House, Cross Street, Arnold, Nottingham, Nottinghamshire, NG5 7PJ. Human intestine. Treatment of diverticulosis involves taking antibiotics and having a diet high in fibre according to … A recent study has proposed a treatment for primary and secondary preventation of AD, by the use of refaximin and mesalazine according to (Carabotti and Annibale 2018). Microscope photo of a large intestine section with inflammation Colitis, Brilliant Colon Seen Through the Eyes of a Histologist. The muscular coat is in two layers, an inner circular and an outer longitudinal, between which lies the myenteric (Auerbach’s) nerve plexus. Introduction . Histology Guide; Digestive; Large Intestine; Large Intestine. Tall columnar absorptive cells contain microvilli, which produce digestive enzymes and absorb digested food, they also have an oval based nuclei. On the outer surface of the colon, small fat filled connective tissue pouches called epipolic appendages can be found, there exact function is unknown according to (Young et al. For the chyme to be converted into faeces a number of steps are taken in the colon: firstly, the ascending colon must carry the faeces from the cecum to the transverse colon. The autonomic regulation of certain glandular secretions and smooth muscle of the gut as well as the blood vessels are all mediated by the enteric nervous system (ENT). The large intestine constitutes the terminal part of the digestive system. Colon. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The colon forms part of the large intestine, and is about 1.5-1.8 m long according to (Vanputte et al. The colonic wall is organised histologically into three layers. retroperitoneal. It consists of four parts: ascending, transverse, descending and sigmoid as can be seen in figure 1. Carcinoma of the colon also known as bowel cancer, are malignant tumours which arise in glandular epithelium. Large intestinal. Microscopy Photography. This website uses cookies to improve your experience. As part of cancer diagnosis, contrast staining, usually H&E is often used, as it displays a range of nuclear, cytoplasmic, and extracellular matrix features; which can be very useful when studying the morphological changes, which may form as part of the disease as stated by (Fisher et al. 05. The food in the large intestine takes at least 18-24 hours to pass through; as a result the movements of the colon are more sluggish than that of the small intestine. The submucosa consists of loose areolar tissue containing blood vessels and the submucous (Meissner’s) nerve plexus. Any opinions, findings, conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of UKEssays.com. We've received widespread press coverage since 2003, Your UKEssays purchase is secure and we're rated 4.4/5 on reviews.co.uk. The folds here are less dramatic than in the small intestine, and there are no villi. We also use third-party cookies that help us analyze and understand how you use this website. Company Registration No: 4964706. This is a low power image of the colon. Our academic experts are ready and waiting to assist with any writing project you may have. These stem cells found at the base of the glands continuously replace the epithelium. This is because there is little need for enzymatic activity in the colon, whereas mucus secreted by goblet cells is needed to stick the faecal matter together. The pinkish red is smooth muscle, while the dark granulated red is red blood cells. Secretion of mucus that acts as a lubricant during the transport of the intestinal contents.
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