Pharyngeal muscles
(Redirected from Pharyngeal constrictor)
Pharyngeal Muscles
The Pharyngeal Muscles are a group of muscles that play a crucial role in swallowing and speech. They are located in the pharynx, the part of the throat behind the mouth and nasal cavity, and above the esophagus and larynx.
Structure[edit | edit source]
The pharyngeal muscles can be divided into two groups: the outer circular layer and the inner longitudinal layer.
Outer Circular Layer[edit | edit source]
The outer circular layer consists of three constrictor muscles:
- The Superior Pharyngeal Constrictor Muscle
- The Middle Pharyngeal Constrictor Muscle
- The Inferior Pharyngeal Constrictor Muscle
These muscles contract in sequence to push food down the esophagus.
Inner Longitudinal Layer[edit | edit source]
The inner longitudinal layer consists of three muscles:
- The Stylopharyngeus
- The Salpingopharyngeus
- The Palatopharyngeus
These muscles elevate the pharynx and larynx during swallowing and speech.
Function[edit | edit source]
The pharyngeal muscles are essential for the process of swallowing and speech production. They help to propel food into the esophagus and prevent it from entering the nasal cavity and larynx. They also contribute to the opening and closing of the Eustachian tubes, which equalizes pressure in the middle ear.
Clinical Significance[edit | edit source]
Dysfunction of the pharyngeal muscles can lead to conditions such as dysphagia (difficulty swallowing), sleep apnea, and speech disorders.
See Also[edit | edit source]
References[edit | edit source]
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