Preferred Label : portal system;
Uberon definition : In the circulatory system of animals, a portal venous system occurs when a capillary
bed drains into another capillary bed through veins, without first going through the
heart. Both capillary beds and the blood vessels that connect them are considered
part of the portal venous system. They are relatively uncommon as the majority of
capillary beds drain into veins which then drain into the heart, not into another
capillary bed. Portal venous systems are considered venous because the blood vessels
that join the two capillary beds are either veins or venules. Examples of such systems
include the hepatic portal system and the hypophyseal portal system. Unqualified,
'portal venous system' often refers to the hepatic portal system. For this reason,
'portal vein' most commonly refers to the hepatic portal vein[WP].;
Uberon synonym : portal venous system;
Origin ID : 0005806;
UMLS CUI : C0226727;
Automatic exact mappings (from CISMeF team)
- Semantic type(s)
- UMLS correspondences (same concept)
- Uberon cross reference
- has part
In the circulatory system of animals, a portal venous system occurs when a capillary
bed drains into another capillary bed through veins, without first going through the
heart. Both capillary beds and the blood vessels that connect them are considered
part of the portal venous system. They are relatively uncommon as the majority of
capillary beds drain into veins which then drain into the heart, not into another
capillary bed. Portal venous systems are considered venous because the blood vessels
that join the two capillary beds are either veins or venules. Examples of such systems
include the hepatic portal system and the hypophyseal portal system. Unqualified,
'portal venous system' often refers to the hepatic portal system. For this reason,
'portal vein' most commonly refers to the hepatic portal vein[WP].
