X-ray of a skull overlaid with a coloured magnetic resonance angiography (MRA) scan of the cerebral arteries. The three pairs of cerebral arteries supply the brain with blood. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / SAMUNELLA |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |