Stylopharyngeus muscle

The Stylopharyngeus muscle (pronunciation: /ˌstaɪloʊfəˈrɪndʒiəs ˈmʌsəl/) is a muscle in the pharynx that plays a crucial role in swallowing.

Etymology

The term "Stylopharyngeus" is derived from the Greek words "stylos" meaning pillar and "pharynx" meaning throat, referring to the muscle's location and function.

Anatomy

The Stylopharyngeus muscle originates from the medial side of the styloid process of the temporal bone and inserts into the lateral wall of the pharynx. It is the only muscle that is innervated by the glossopharyngeal nerve (cranial nerve IX).

Function

The primary function of the Stylopharyngeus muscle is to elevate the larynx and pharynx during swallowing and speaking. It also helps to widen the pharynx, which facilitates the passage of a large food bolus.

Clinical significance

Damage to the glossopharyngeal nerve can result in dysfunction of the Stylopharyngeus muscle, leading to difficulties in swallowing, a condition known as dysphagia.

Related terms

External links

Medical encyclopedia article on Stylopharyngeus muscle
Wikipedia's article - Stylopharyngeus muscle

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Stylopharyngeus muscle