The pharynx is a muscular tube in the neck behind the nose and mouth that serves as a shared pathway for both breathing and swallowing.
Most people call the pharynx the throat and think of it as the spot that gets sore during a cold. But this muscular tube does more than hurt when you’re sick. It sits in the midline of your neck, starting behind the nose and extending down past the mouth to the larynx and esophagus.
So when people ask about where the pharynx is located and what it does, the answer involves three separate sections and two major body systems. This article covers the exact location of the pharynx, its three parts, and its jobs in breathing and swallowing. You’ll also learn about common conditions that can affect it.
Where the Pharynx Sits in the Neck
The pharynx is a fibromuscular tube positioned directly in front of the vertebral column. It runs from the base of the skull down to the sixth cervical vertebra, where it connects to the esophagus.
The structure is semicircular in cross section and lies in the midline of the neck. Behind the nose sits the nasopharynx, behind the mouth sits the oropharynx, and above the larynx sits the laryngopharynx — these are the three sections.
This positioning means the pharynx is a shared structure between two organ systems. Air passes through it on the way to the lungs, and food passes through it on the way to the stomach. The pharynx is the main pathway, besides the oral cavity, that these two systems share.
Why the Throat Deserves a Closer Look
Most people don’t think about their pharynx until something goes wrong — a sore throat, difficulty swallowing, or that scratchy feeling that comes with a cold. The pharynx is easy to overlook because it just seems like a passage, but its role in both breathing and digestion makes it a critical junction in your neck.
- Routes air and food separately: The pharynx is the main shared pathway for the respiratory and digestive systems. When you swallow, the larynx rises and the epiglottis covers the airway so food enters the esophagus.
- Houses immune tissue: The pharyngeal tonsils and palatine tonsils are part of the pharynx and help trap pathogens entering through the nose and mouth.
- Assists with speech: The pharynx acts as a resonating chamber that modifies sound from the vocal cords, contributing to voice quality.
- Coordinates swallowing: The pharyngeal phase of swallowing is involuntary and moves food from the mouth to the esophagus in about one second.
- Protects the airway: Pharyngeal muscles and reflexes help prevent food and liquid from entering the trachea during swallowing.
These jobs happen automatically, which is why you don’t notice the pharynx working. Problems become obvious only when something disrupts them — which is when most people start wondering where the pharynx is located and what it’s supposed to be doing.
The Three Sections of the Pharynx
The pharynx divides into three distinct regions, each with a specific location and role. Understanding these sections helps clarify how the pharynx manages both air and food.
The nasopharynx sits behind the nose and above the soft palate. It’s the highest section and is primarily involved in breathing. The oropharynx sits behind the mouth and is the middle section — both air and food pass through it, making it the crossroads of the pharynx. The laryngopharynx is the lowest section, sitting above the larynx, and it directs food toward the esophagus and air toward the larynx.
| Section | Location | Primary Role |
|---|---|---|
| Nasopharynx | Behind the nose, above the soft palate | Air passage, houses adenoids |
| Oropharynx | Behind the mouth, from soft palate to hyoid bone | Passage for air and food, houses tonsils |
| Laryngopharynx | Behind the larynx, from hyoid bone to esophagus | Directs food to esophagus, air to larynx |
| Pharyngeal wall | Surrounds all three sections | Muscular contraction for swallowing |
| Pharyngeal plexus | Nerve network on the pharyngeal wall | Coordinates muscle movement and sensation |
The pharynx hollow muscular tube definition from NCI describes this structure as starting behind the nose and opening into the larynx and esophagus. That opening and closing action is what allows the pharynx to toggle between breathing and swallowing.
How the Pharynx Helps You Breathe and Swallow
The pharynx has two main jobs: moving air and moving food. These functions rely on muscles and nerves that work in a precise sequence, and the process of swallowing — called deglutition — illustrates how it all fits together.
- Oral phase (voluntary): Your tongue pushes food to the back of the mouth toward the oropharynx. This is the only part of swallowing you consciously control.
- Pharyngeal phase (involuntary): The soft palate rises to seal off the nasopharynx, and the larynx elevates so the epiglottis covers the airway. Pharyngeal muscles then contract in sequence to push food downward.
- Esophageal phase (involuntary): The upper esophageal sphincter relaxes, and food enters the esophagus for transport to the stomach.
During breathing, the pharynx stays open and relaxed, allowing air to pass freely between the nasal cavity and the larynx. The pharyngeal muscles maintain this open passage automatically — you don’t have to think about it.
Common Conditions That Affect the Pharynx
Several conditions can affect the pharynx, ranging from minor infections to more serious disorders that require medical attention. The most common is pharyngitis, or sore throat, which viral infections cause in the majority of cases. Bacterial infections like strep throat are less common but require antibiotics.
Swallowing disorders, known as dysphagia, can involve different parts of the pharynx. Oropharyngeal dysphagia describes difficulty moving food from the mouth and throat into the esophagus. Common causes include acid reflux, advancing age, and neurodegenerative disease.
| Condition | Description |
|---|---|
| Pharyngitis | Inflammation of the pharynx, usually from a viral infection |
| Tonsillitis | Infection of the tonsils in the oropharynx |
| Dysphagia | Difficulty swallowing, can be oral or pharyngeal in origin |
| Retropharyngeal abscess | Pocket of pus behind the pharynx, more common in children |
Cleveland Clinic notes the pharynx helps you both breathe and digest food — see its pharynx commonly called throat overview for the full breakdown. When pharynx function is disrupted, symptoms like hoarseness, chronic cough, or difficulty swallowing can appear.
The Bottom Line
The pharynx is a muscular tube in the midline of your neck that serves as a shared passage for breathing and swallowing. Its three sections — nasopharynx, oropharynx, and laryngopharynx — each have specific roles in routing air and food to the right destinations, and the entire process happens automatically hundreds of times a day.
If you’re experiencing ongoing difficulty swallowing, a chronic sore throat, or changes in your voice quality, an ear-nose-throat (ENT) specialist can examine your pharynx with a scope and help identify the underlying cause.
References & Sources
- NCI. “Pharynx Hollow Muscular Tube” The pharynx is a hollow, muscular tube inside the neck that starts behind the nose and opens into the larynx and esophagus.
- Cleveland Clinic. “Pharynx Commonly Called Throat” The pharynx is commonly called the throat and is a muscular tube in the middle of your neck.