Respiratory Tract – Involves organs that are involved in breathing. These include the nose, throat, larynx, trachea, bronchi, and lungs. Also called respiratory system. The elastic cartilage helps to protect the airway during swallowing.

Trachea – It is the long tube that connects your larynx (voice box) to your bronchi. Your trachea’s main function is to carry air in and out of your lungs. Because it’s a stiff, flexible tube, it provides a reliable pathway for oxygen to enter your body.

Epiglottis – The epiglottis is a small, movable “lid” just above the larynx that prevents food and drink from entering your windpipe.