For example, vacuoles in stomata cells contain large numbers of potassium ions, which can be pumped in or out to open or close the stomata. Animal Cells In animal cells, vacuoles serve more subordinate roles, such as assisting in endo- and exocytosis or basic storage of food and waste. Central Vacuole The central vacuole is found only in plant cells. It is filled with water and is pressurised, like a balloon. This forces all the other organelles within the cell out toward the cell wall. This pressure is called turgor pressure and is what gives plants their crisp and firm structure.
A nasogastric (NG) tube is a long, narrow feeding tube that goes through your nose and down into your stomach. The NG tube is soft and bendable. (See the diagram) When you leave the hospital, you should be able to: Give yourself liquid food and water through the feeding tube. Give yourself medication through the tube.
Definition of Endotracheal tube. Endotracheal tube: A flexible plastic tube that is put in the mouth and then down into the trachea (airway). A physician inserts an endotracheal tube under direct vision, with the help of a laryngoscope, in a procedure called endotracheal intubation. The purpose of using an endotracheal tube is to ventilate the lungs. Last Editorial Review: 5/13/2016.