Related Clues:

• Vessels seen on angiograms
• Major vessels
• Crucial arteries
• Torso tubes
• Vital lines
• Circulatory pipelines
• Lines from hearts
• Vital vessels
• Vessels from hearts
• Vessels in angiograms
• Ticker lines?
• Some circulation channels
• Conduits from ventricles
• Tubes in trunks
• Vital arteries