这个词是什么意思？
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.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D011168 · MeSH 2026。
Courtesy of the U.S. National Library of Medicine. Annual snapshot; later updates may not be reflected. NLM does not endorse this service.