Vein
:In geology, a vein is a regularly shaped and lengthy occurrence of an ore; a lode.
Related Topics:
Geology - Ore - Lode
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In biology, a vein is a blood vessel which returns blood from the microvasculature to the heart. Veins form part of the circulatory system. The vessels carrying blood away from the heart are known as arteries.
Related Topics:
Biology - Blood vessel - Blood - Microvasculature - Heart - Circulatory system - Arteries
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~ Table of Content ~
| ► | Introduction |
| ► | Biological Vein |
| ► | Also see |
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