What does it mean when your pupils dilate and then go smaller? Dr. Tarek Naguib Dr. Naguib Reaction to light: Much light causes pupils to constrict to protect the eye from the flood of light that will cause blurred vision.
Cecotropes, also called 'night feces' or 'soft feces,' are the material resulting from the fermentation of food in a part of the digestive system called the 'cecum.' Cecotropes are nutrient-rich and are passed out of the body, like feces, but are reingested by the animal so the nutrients can be absorbed.
Tissue Layers of the Digestive Tract. Last Updated: Tuesday, February 7, 2012. Most of the tissue in the digestive tract itself has four layers. These layers are called the mucosa, the submucosa, muscularis externa, and the serosa. The layer in the innermost part of the digestive tract is called the mucosa.The mucosa serves to line the cavity of the tract. The mucosa consists of three sub-layers called the epithelium, the lamina propria, and the muscularis mucosae.issue Layers of the Digestive Tract. Last Updated: Tuesday, February 7, 2012. Most of the tissue in the digestive tract itself has four layers. These layers are called the mucosa, the submucosa, muscularis externa, and the serosa. The layer in the innermost part of the digestive tract is called the mucosa.