MEDizzy
MEDizzy
Moniccca
Monicccaabout 2 years ago
Rectum & Colon Histology

Rectum & Colon Histology

Microscopically, the mucosal lining of the rectum & colon exhibits many intestinal glands called crypts of Lieberkuhn (flowers) that are lined with mucus secreting goblet cells (petals). Mucus collects in the lumen of the gland (center of flower) and is squeezed out when the muscular wall contracts to push the fecal material out. As the feces move through the colon water is reabsorbed making them drier to conserve the water. As a result, the mucus secreted from these crypts is super important in this region because it ensures that the tube is well lubricated to allow the dry feces to be passed along the colon easily without causing any damage (the mucus decreases friction). If you slice up the colon or rectum in a way that ensures you cut through the mucosa parallel with its surface and then stain it using dyes that show the mucus inside the goblet cells (in this case HEA50). Then, your rectum looks much more like a field full of daisies with pretty goblet cell petals than a chute for passing along poop πŸ’©

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