First posterior intercostal artery
Arteria intercostalis posterior prima · První zadní mezižeberní tepna
Heart & arteries
Looks like
An artery running under the first rib, usually from the superior intercostal branch of the costocervical trunk.
What it does
Supplies the first rib space: muscles, skin and the upper spine.
Keeping it well
Rarely a problem; can bleed in first-rib fractures or surgery at the top of the chest.
Related conditions
- High blood pressure
- High cholesterol
- Hypothermia & frostbite
- Kawasaki disease
- Metabolic syndrome
- Orthostatic hypotension & POTS
- Peripheral artery disease
- Phaeochromocytoma & hyperaldosteronism
- Pleural effusion
- Pneumothorax
- Pre-eclampsia
- Raynaud's phenomenon
- Sepsis
- Shock (circulatory failure)
- Vasculitis (GCA & others)