Blood clots are clumps that occur when blood hardens from a liquid to a solid. 1  A blood clot that forms inside one of your veins or arteries is called a thrombus. A thrombus may also form in your heart.  A thrombus that breaks loose and travels from one location in the body to another is called an embolus.
The intestines are the part of the digestive system between the stomach and the anus. They are all coiled up to fit inside your abdomen. 1  The small intestine is a tube about 6 metres long in an adult.2  It is greyish-purple in colour and is about 35mm wide.he intestines are part of the digestive system of the body. They are sometimes called the guts or bowels. This system deals with all the food and drink that you take into your body. You can learn more about the digestive system in the topic 'Your waste disposal system ' .
It is divided into two major sections: small intestine and large intestine. The small intestine is about 6 meters (20 feet) long. It is coiled in the center of the abdominal cavity (see picture).The small intestine is divided into 3 sections: upper, jejunum, and ileum.The lining of the small intestine secretes a hormone called secretin, which stimulates the pancreas to produce digestive enzymes. The large intestine has a larger width but is only 1.5 meters (5 feet) long.The large intestine is divided into 6 parts: cecum, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. Major function of Intestines. The small and large intestines perform different functions.t is divided into two major sections: small intestine and large intestine. The small intestine is about 6 meters (20 feet) long. It is coiled in the center of the abdominal cavity (see picture).