Vein Edit History Talk0 738pages on this wiki Redirected from Veins This article is a stub. You can help Athlepedia by expanding it. A vein is a blood vessel that carries blood away from tissues and towards the heart. [1] See AlsoEdit Artery References Edit ↑ Donche, Dan (2008). FF Trainer Certification Guide. USA: Fatal Fitness. Read more The widening of blood vessels. Vasodilation is the opposite of vasoconstriction. [1] vascularity Vasodilation Heart palpitations are perceptible forcible pulsations of the heart. [1][2] Palpitation The narrowing of blood vessels. Vasoconstriction is the opposite of vasodilation. [1] vascularity Vasoconstriction Categories: Stubs Cardiovascular System Add category Cancel Save