The Pharynx or throat is a funnel shaped tube
that leads into the respiratory passages and the oesophagus. Thus
it is a common passage for both air and food. The pharynx is
divided into three parts:
- Upper part of the Pharynx.
- Internal nares and the two auditory tubes
open in the Nasopharynx
- Closed by the soft palate during
swallowing to prevent entry of food into the nose.
- Covered with ciliated epithelium that
helps trap particles from the inhaled air.
- Middle portion of the pharynx between the
soft palate and the epiglottis.
- Common passage for food and air.
- Covered by stratified squamous epithelium.
- Lowest part of the pharynx.
- Point where the digestive and respiratory
- Food passing posteriorly over the
epiglottis and into the oesophagus.