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What is Veebral aery passes through foramen of transverse processes of which cervical veebra and explain in detail?
The veebral aery, branch of subclan, ascends in the foramina transversaria of upper six cervical veebrae.On reaching the base of skull, it winds backwards and medially around the lateral mass of atlas and pierces posterior atlanto-occipital membrane to enter the posterior cranial fossa through foramen magnum.The loop of veebral aery around the lateral mass of atlas may damp down the aerial pulsations within the cranial cavity.(Ref: vishram Singh textbook of clinical neuroanatomy second edition pg 174)