| Phenotype: | intersegmental vein vein decreased diameter, abnormal |
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| Note: | This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name. |
| Name: | intersegmental vein |
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| Synonyms: | ISV |
| Definition: | Veins that connect the posterior cardinal vein and the dorsal longitudinal anastomotic vessel. They run along the vertical myotomal boundaries. They form from primary intersegmental vessels that are contacted by secondary angiogenic sprouts from the posterior cardinal vein and take on the characteristics of veins. These eventually link with other secondary sprouts from the posterior cardinal vein to form the parachordal vessel. |
| Ontology: | Anatomy Ontology [ZFA:0001057] |
| Name: | vein |
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| Synonyms: | venous system |
| Definition: | Vessels that carry blood to the heart. |
| Ontology: | Anatomy Ontology [ZFA:0000082] |
| Name: | decreased diameter |
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| Synonyms: | |
| Definition: | A diameter which is relatively small. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001715] |