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.
The process of digestion begins in your mouth. The salivary glands start to function as soon as you take the first bite of food. There are three large salivary glands and numerous smaller ones located in your mouth and throat.The larger salivary glands occur in pairs and are located on either side of your mouth.he process of digestion begins in your mouth. The salivary glands start to function as soon as you take the first bite of food. There are three large salivary glands and numerous smaller ones located in your mouth and throat.