If a blood clot forms, it can stop the blood flow. This can cause a heart attack or stroke. A heart attack occurs when the blood flow to a part of the heart is blocked by a blood clot. If this clot cuts off the blood flow completely, the part of the heart muscle supplied by that artery begins to die.
Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules.
Mouth: This is the first organ that begins the digestion process and it is here that mastication or breaking down of food takes place. The mouth further contains three basic organs-the salivary glands, tongue and the teeth.iver: The liver is one of the most important organs of the human body. The liver basically performs the task of producing digestive juices, biochemicals and also helps in protein synthesis. Pancreas: The pancreas secretes enzymes into the duodenum which breaks down the fats, carbohydrates and protein.