The complex muscular architecture that powers the human swallow
In short: Explore the intricate anatomy of the pharynx, the gateway of the throat. This video breaks down the specific muscles and nerves that coordinate the essential act of swallowing.
The pharynx is a sophisticated anatomical region divided into the nasopharynx, oropharynx, and laryngopharynx. Its function relies on a coordinated network of muscles, including the superior, middle, and inferior pharyngeal constrictors, along with the stylopharyngeus, palatopharyngeus, and salpingopharyngeus.
The video details the surrounding structures that facilitate these movements, such as the epiglottis and the larynx (including the thyroid, cricoid, and arytenoid cartilages). It also maps the vital neurological and vascular connections, including the glossopharyngeal nerve (cranial nerve IX), the vagus nerve, and the internal carotid artery.
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Sources
- Summary by Intellect · source: Anatomy of the Pharynx - Pharyngeal Muscles - Anatomy of the Head and Neck
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