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.
It covers the entrance to the larynx during swallowing. Thus the food particles are diverted to the oesophagus and not to the respiratory system. Epiglottis has a role in speech that is it acts as an articulator in the production of vowels and pharyngeal consonants. Inflammation of the mucous membrane of the epiglottis is known as epiglottitis. Glottis â it is the space between the two vocal cords. It plays a role in production of sound. Illu01 head neck by Arcadian - http://training.seer.cancer.gov/head-neck/anatomy/overview.html.