Thus if you take a normal heart at rest that's innervated by both sympathetic and parasympathetic systems, and then sever the vagus nerve, you lose the parasympathetic input to the heart, while leaving the sympathetic input intact. The result is that the resting heart rate increases, to something closer to 100 bpm.
There are several organs and other components involved in the digestion of food. The organs known as the accessory digestive glands are the liver, gall bladder and pancreas. Other components include the mouth, teeth and epiglottis. The largest structure of the digestive system is the gastrointestinal tract (GI tract). This starts at the mouth and ends at the anus, covering a distance of about nine (9) metres. The largest part of the GI tract is the colon or large intestine.
Summary Information: Accessory Digestive Organs. Accessory Digestive Organs: The accessory digestive organs are a group of organs that work with the organs in the alimentary canal to digest food. The accessory digestive organs in the mouth include the teeth and tongue. The other accessory digestive organs include the salivary glands, liver, gall bladder and pancreas, which are all connected to the alimentary canal by ducts.