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Overview of blood flow through vessels in a closed circulatory system.
Lymphatic vessels (green) pick up excess tissue fluid, purify it in lymph nodes, and return it to th
Strawberry hemangioma, a birthmark caused by a collection of blood vessels in the skin.
Lymphatic vessels pick up excess tissue fluid, purify it in the lymph nodes, and then return it to t
Blood vessels: (A) normal artery; (B) constriction; (C) arteriosclerosis and atherosclerosis.
Twelve primary energy channels and the Conception and Governing Vessels of Traditional Chinese ...