Thumb artery

 The main artery of the thumb is called the:

🩸 

Princeps pollicis artery

Key points:

• It is the primary blood supply to the thumb
• It usually branches off from the Radial artery in the hand
• It runs along the palmar (front) side of the thumb
• It supplies both the muscles and skin of the thumb

Supporting artery

There’s also a smaller companion vessel:

• Radialis indicis artery
  
• Supplies the side of the index finger next to the thumb
• Often arises near the same point as the princeps pollicis artery
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Why it matters

• It’s important in hand injuries and surgery
• Damage to it can affect thumb movement and healing due to reduced blood flow

If you want, I can show you a simple diagram of where it runs in the hand.