Pharynx

Definition

The pharynx is a muscular tube that connects the mouth and nasal passages with the esophagus and larynx, serving both the respiratory and digestive systems by allowing the passage of air, food, and drink. It plays a crucial role in facilitating breathing, swallowing, and vocalization.

Related terms

Esophagus: A muscular tube that transports food from the pharynx to the stomach by coordinated waves of muscle contractions known as peristalsis.

Larynx: Often referred to as the voice box, it is located within the neck above the trachea and below the pharynx; it houses the vocal cords and is instrumental in breathing, producing sound, and protecting the trachea against food aspiration.

Nasal Passages: The channels located within the nose through which air enters from the external environment into the respiratory tract leading to the pharynx; they are lined with mucous membranes that warm, moisten, and filter incoming air