Related Clues:

• Tin Man's request
• Vital heart vessel
• One of 13 cards
• Blood channel
• Outlet of the left ventricle
• It originates from the left ventricle
• Important vessel
• It's just above the heart
• It "has its reasons which reason knows nothing of": Pascal
• ''Fantastic Voyage'' route
• Artichoke center
• Valentine decoration
• Major vessel
• Left ventricle's outlet
• Valentine shape