The auditory tube (aka Eustachian tube) opens at one end in the middle ear and the other end in the pharynx (throat). It is important in maintaining the correct air pressure in the middle ear, but it is also the means of bacteria getting up into the middle ear and causing earaches or otitis media.
Pharynx.
The pharynx serves as a passageway for both food and air.
The Oropharynx is the common passage for food and air. Liquid, food, and air all pass through this passage.
The main function of the pharynx is to provide a passageway for the respiratory and digestive tracts. The pharynx is also referred to as the throat. It houses the tonsils, the uvula, epiglottis and is the entrance way to the esophagus. The pharynx or throat, allows common passageway for air into your lungs and food into your stomach. The pharynx has two roles. The upper part of the pharynx will only allow food to pass through, and the lower part of the pharynx allows air, fluids, and food to pass through.
your trachea or windpipe
Cloth allows air transfer through the stitches.
trachea
trachea
No, air is not an opaque object. Opaque objects do not allow light to pass through them, but air is transparent and allows light to pass through easily.
Materials like air, water, clear glass etc that allows light pass through them are called transparent.
A small leaf-like structure that closes the passageway to the larynx to prevent food from entering the larynx and trachea when you swallow. When it is open it allows for the passage of air and sound.
The trachea.