Before Anesthesia. It is necessary to have an empty stomach before receiving general anesthesia. In most cases, patients are required to abstain from eating and drinking after midnight on the night before their scheduled surgery to reduce the chances of vomiting while under anesthesia. When a person is under general anesthesia, the body does not work normally.
Definition of AMPULLA OF LORENZINI. : any of the pores on the snouts of marine sharks and rays that contain receptors highly sensitive to weak electric fields.
Ampullae are an important part of the water vascular system of starfish, which is the responsible for the animal's locomotion. The only function of the ampullae is to store the water that enters the vascular system and send it to the minuscule tube feet, located in the ventral side of the starfish's arms.he contraction of the muscles also causes the water stored in the ampullae to move to the tube feet, which are the locomotion organs of the starfish. Nerve cells connected to the ampullae and other parts of the vascular water system control the relaxation and contraction of the ampullae's muscle fibers.