Anatomy

Portal System

A system of vessels in which blood, after passing through one CAPILLARY BED, is conveyed through a second set of capillaries before it returns to the systemic circulation. It pertains especially to the hepatic portal system.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A system of vessels in which blood, after passing through one CAPILLARY BED, is conveyed through a second set of capillaries before it returns to the systemic circulation. It pertains especially to the hepatic portal system.

MeSH Record

Classification

Broader headings

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MeSH Record

See Also

MeSH Record

Synonyms

3 entry terms
  • Portal Systems
  • System, Portal
  • Systems, Portal

MeSH Record

Aspects Covered

22 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, ultrastructure, virology.

MeSH Hierarchy

Tree Number

  1. A07w.015w.908w.670w

MeSH Record

NLM Classification

WI 720

AMA Style

References

  1. National Library of Medicine. Portal System. Medical Subject Headings (MeSH). 2026. Unique ID D011168. http://id.nlm.nih.gov/mesh/2026/D011168
  2. Portal System. In: Wikipedia. https://en.wikipedia.org/wiki/Portal_venous_system
  3. Portal System. In: Wikidata. https://www.wikidata.org/wiki/Q2394016