Marginal Wood Fern – Dryopteris marginalis

The supreme intercostal vein (highest intercostal vein) is a paired vein that drains the first intercostal space on its corresponding side.

It usually drains into the brachiocephalic vein.^[1] Alternatively, it drains into the superior intercostal vein, or the vertebral vein of its corresponding side.

Clinical significance

This vein does not have valves, this is an important point when it comes to spread of cancerous secondaries.^{[citation needed]}

Additional images

• 
  Diagram showing completion of development of the parietal veins.

See also

• superior intercostal vein
• posterior intercostal vein
• azygos vein

References