Related MeSH Hierarchy (4)
Anatomy [A] » Musculoskeletal System [A02] » Muscles » Muscle, Skeletal » Pharyngeal Muscles » Esophageal Sphincter, Upper
Anatomy [A] » Digestive System [A03] » Gastrointestinal Tract » Upper Gastrointestinal Tract » Esophagus » Esophageal Sphincter, Upper
Anatomy [A] » Respiratory System [A04] » Pharynx » Pharyngeal Muscles » Esophageal Sphincter, Upper
Anatomy [A] » Stomatognathic System [A14] » Pharynx » Pharyngeal Muscles » Esophageal Sphincter, Upper
Description
The structure at the pharyngoesophageal junction consisting chiefly of the cricopharyngeus muscle. It normally occludes the lumen of the ESOPHAGUS, except during SWALLOWING. MeSH
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