| Description | Any variation in the structure or appearance of the cells that form a narrow passage connecting the posterior bulb of the pharynx to the anterior intestine compared to control. In C. elegans this valve is composed of 3 pairs of cells each forming a flattened disc-like ring and is lined by a layer of cuticle (Wormatlas). |
| Identifier | Name | Description |
|---|---|---|
| WBPhenotype:0000598 | alimentary system morphology variant | Variations in the form, structure or composition of the series of related tissues lying within the body cavity and devoted to feeding and digestion compared to control (Wormatlas). |
