Signs of Kidney Failure The early indications of failing kidneys include a marked increase in water consumption (polydipsia) and in urination (polyuria); weight loss; apparent decline in appetite; and, in some cases, occasional vomiting. If these signs are observed, the owner should seek veterinary consultation at once.
Function: Chemical digestion of food and absorption of nutrients into your blood. Longest section of your digestive tract. Your small intestine is around five metres long, making it the longest section of your digestive tract. Although it is longer than your large intestine it has a smaller diameter. This is why it's called the small intestine.
The main function of the small intestine is absorption of nutrients and minerals. That is, absorption of the nutrients and minerals in the food ingested, usually via the mouth, at an earlier stage in the digestive process.igested material may be transported into blood vessels in the wall of the small intestine by the processes of simple/passive diffusion, facilitated diffusion, primary active transport, or secondary active transport (see below).