Vertebral artery

Question 1

Where does it originate?

Answer 1

Subclavian artery

Question 2

Where does it pass through?

Answer 2

transverse foramina of cervical vertebrae and ascends down neck

Question 3

What does it supply?

Answer 3

the posterior part of brain, cranial part of spinal cord meninges and deep cervical muscles

Question 4

What are the four parts?

Answer 4

Prevertebral (V1), Transverse (V2), Atlantic (V3), Intracranial (V4)

Question 5

Prenatal runs

Answer 5

between longus coli and scalenus anterior

Question 6

Transverse enters

Answer 6

enters transverse foremen through 6th cervical vertebra and ascends through other foramina of other cervical vertebrae to the atlas

Question 7

Atlantic perforates

Answer 7

posterior atlanto-occipital membrane and spinal dura meter and passes through the foramen magnum into the cranial cavity.

Question 8

The intracranial is located

Answer 8

in the posterior cerebral fossa

Question 9

Both the veterbral arteries fuse

Answer 9

to make unpaired basilar artery.