Vertebral Artery

Question 1

The vertebral A is derived from what?

Answer 1

Subclavian A

Question 2

Vertebral A has how many parts

Answer 2

4

Question 3

Part 1 lies between what?

Answer 3

1st part of subclavian A to transverse foramen of C6

Question 4

Part 1 passes between what?

Answer 4

Longus coli and Scalenus anterior muscles

Question 5

Part 1 passes behind what?

Answer 5

Carotid tubercle

Question 6

Part 2 lies within what?

Answer 6

Transverse foramina of C6-C1

Question 7

Part 2 is relatively fixed where?

Answer 7

At C2 and C1

Question 8

Part 2 is accompanied by what?

Answer 8

Vertebral veins and Sympathetic nerves

Question 9

Part 3 extends from what?

Answer 9

C1 to foramen magnum

Question 10

Part 3 is most prone to what?

Answer 10

Dissection

Question 11

Part 3 passes posteriorly behind lateral mass of C1 to lie on what?

Answer 11

Posterior arch of C1

Question 12

After part 3 passes behind lateral mass of C1 it then passes where?

Answer 12

Beneath the posterior atlanto-occipital membrane

Question 13

Finally part 3 turns upwards to pass through what?

Answer 13

foramen magnum

Question 14

Part 4 is the section of the A lying above what?

Answer 14

Foramen Magnum

Question 15

Part 4 passes forwards to lie anterior to what?

Answer 15

Medulla

Question 16

Part 4 ends at the lower pons by joining with what?

Answer 16

It’s counterpart to form basilar A

Question 17

What are the branches of the vertebral A?

Answer 17

Cervical
Anterior Spinal
Posterior Spinal
Posterior Inferior Cerebellar A
Medullary