Subclavian & Vertebral Artery

Question 1

Muscle dividing Subclavian artery into 3 parts is

Answer 1

Scalenus anterior muscle

Question 2

Branches of the 1st part of Subclavian Artery

Answer 2

V - Vertebral Artery

I - Internal Thoracic Artery

T - Thyrocervical Trunk

Question 3

Branches from the Thyrocervical Trunk

Answer 3

S - Suprascapular artery ~ passes above the Foramen

I - Inferior Thyroid Artery

T - Transverse Cervical Artery

Question 4

Transverse Cervical Artery Branches →

Answer 4

Superficial and Deep Branches

Question 5

The only structure passing through Suprascapular Foramen is

Answer 5

Suprascapular Nerve

Question 6

In most the cases Deep branch of the Transverse Cervical Artery replaces

Answer 6

Dorsal Scapular artery; which is branch of 3rd part of Subclavian artery

Question 7

Branch of 2nd part of Subclavian artery

Answer 7

Costocervical Trunk

Question 8

Branch from 3rd part of Subclavian artery

Answer 8

Dorsal Scapular Artery

Question 9

Stellate Ganglion formed by

Its located at the level of;

Answer 9

Inferior Cervical Ganglion + 1st Thoracic Ganglion

C7 vertebra

Question 10

Why Ganglion block at the level of C7 is Contraindicated

Answer 10

Due to increased risk of damage to cervical part of vertebral artery;

As cervical part of vertebral artery is closely related to Stellate Gamglion

Question 11

2nd part of Vertebral artery enters

Answer 11

Foramen transversarium of C6 vertebra

And ascends upto C1 vertebra

Question 12

Landmark for C6 Vertebra

Answer 12

Chassaignac Tubercle

Stellate ganglion block → can be approached through C6 Vertebra

Question 13

3rd part of Vertebral Artery is content of

Answer 13

SubOccipital Triangle