It's good news: Those blood vessels are open, and not blocked.
When the vascular structures in the circle of Willis appear patent in MRI results, it means that there is normal blood flow through these arteries without any significant blockages or obstructions. This is a positive finding as it suggests good blood supply to the brain, reducing the risk of ischemic events like strokes.
They are purposeless structures
when mcom-ii results will appear
Yes
No as they have no vascular tissues
Periosteum
ribs and bones
what causes tree rings to form each year
homologous structures
Carboniferous
They are examples of vestigial structures: structures that appear to be useless but once most probably had a function
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Yes, but he did not do any fighting he only had a little chat with Sylvester Stallone and Bruce Willis about who would take a mission.