Related Clues:

• Main life line?
• Rope securer
• Nautical speed unit
• Where blood pressure is highest
• Sheepshank, e.g.
• Coronary artery adjunct
• Line from the ticker
• Major blood carrier
• Body's primary blood carrier
• Shoelace snafu
• The body's biggest artery
• Heart attachment
• The body's largest artery
• Masseuse's challenge
• Its valve may be bypassed