C33836Level 7

Upper Esophageal Sphincter

**Semantic type:** Anatomical Structure

**Definition:** A valve that is composed of muscles in the upper portion of the esophagus.

**Synonyms:** - UES

GET/api/v1/systems/nci_thesaurus/nodes/C33836

Official DownloadCC BY 4.0Source

Hierarchy Explorer

No cross-system equivalences mapped for this node.