{# Crawler directives — per-engine only. A bare `robots` meta is deliberately absent: pruning here is a Google indexation decision, never a crawl block, so AI crawlers keep the full surface. #}

artery vs vein

属性	artery	vein
拉丁名称	arterial subtree	vascular element
类型	Vessel	Vessel
身体系统	Cardiovascular	N/A
身体区域	N/A	N/A
功能	N/A	N/A
临床意义	N/A	N/A
FMA ID	50720	50723

{# Internal-link refocus: a comparison is an entry point, not a destination. Send readers (and crawl equity) to the structure, system and region pages. #}

Full structure pages

artery

arterial subtree

Cardiovascular

vein

vascular element