More ideas from kolorin

Schematic representation of the Circle of Willis, arteries of the brain and brain stem. Blood flows up to the brain through the vertebral arteries and through the internal carotid arteries.

A boy holds his baby sister saved from under rubble, who survived what activists say was an airstrike by forces loyal to Syrian President Bashar al-Assad in Masaken Hanano in Aleppo February REUTERS/Hosam Katan