A condenser is a piece of laboratory glassware used to cool hot liquids or vapors. It consists of a tube within a tube. This particular condenser is called a Vigreux column. Dennyboy34, Wikipedia Commons.
The epiglottis is a flexible flap at the superior end of the larynx in the throat. It acts as a switch between the larynx and the esophagus to permit air to enter the airway to the lungs and food to pass into the gastrointestinal tract.hroughout each day, the epiglottis spends the vast majority of its time relaxed at the superior edge of the larynx just posterior to the tongue. In this position, air is able to enter the pharynx from the nose or mouth and pass freely into the larynx and onward to the lungs.
In the throat....The Epiglottis is a flap that closes when we swallow and opens back up so we can breathe. It covers the larynx so food cannot travel down the trachea (windpip â¦ e) when we swallow so we do not inhale our food (choke). If you put your hand on your throat and swallow you can feel your larynx (Adams apple) rise up to meet your epiglottis.