Related Clues:
- They withstand a lot of pressure
- Heart lines?
- Paths from the heart
- They come straight from the heart
- Big arteries
- Major body arteries
- Vital conduits
- Places for ore
- Angiogram images
- Trunks filled with blood
- Blood vessels
- Trunk lines
- Highway system components
- Where 37 Down is found
- Major heart vessels