| Term: | posterior cardinal vein intersegmental vein |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | posterior cardinal vein |
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| Synonyms: | axial vein, caudal cardinal veins, PCV, postcardinal vein |
| Definition: | Continuation of the caudal vein cranial to the anal pore. The cardinal vein splits into a pair of vessels in the cranial trunk, just caudal to the radix of the aorta. The posterior cardinals each empty into the common cardinal vein. |
| Ontology: | Anatomy Ontology [ZFA:0000477] |
| 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] |