Vertebral artery is divided into the following four parts:
V 1 : Origin to transverse process of C6
V 2 : Thru f. transversaria of upper 6 cervical vertebrae.
V 3 : Sub- occipital triangle.
V 4 : Passes thru foramen magnum, pierces dura and enters subarachnoid space.
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| Divisions of vertebral artery |
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