When diving doubles you will need to use your wing/BCD to compensation. Typically you can't control your buoyancy only with a drysuit with steel doubles and stage bottles so you will need to use your wing to offset buoyancy.
The structure of the throat is designed to prevent food from entering the lungs. Photo Credit matthewennisphotography/iStock/Getty Images. When food enters the lungs instead of the esophagus, it affects breathing and can cause choking and other problems.
the lidlike cartilaginous structure overhanging the entrance to the larynx. adj., adj epiglotÂ´tic. The muscular action of swallowing closes the opening to the trachea by placing the larynx against the epiglottis. This prevents food and drink from entering the larynx and trachea, directing it instead into the esophagus.he thin elastic cartilaginous structure located at the root of the tongue that folds over the glottis to prevent food and liquid from entering the trachea during the act of swallowing.