Base of the Neck

Question 1

Boundaries

Answer 1

Junctional region between the neck and the thorax
Superior side of the superior thoracic aperture
Laterally = 1st pair of ribs
Anteriorly = manubrium of sternum
Posteriorly = body of T1

Question 2

Arteries

Answer 2

Brachiocephalic trunk
Left common carotid
Left subclavian

Question 3

Subclavian arteries

Answer 3

Difference in origin btw right and leftt
Right = from brachio, Left = from aorta
Both sides divide into three parts by ant scalene

Question 4

Subclavian artery 1st division

Answer 4

1st = thyrocervical trunk, vertebral, internal thoracic

Question 5

Subclavian artery 2nd divison

Answer 5

costocervical trunk

Question 6

3rd part

Answer 6

dorsoscapular if present

Question 7

Veins

Answer 7

Internal jugular
Subclavian
Brachiocephalic

Question 8

Nerves

Answer 8

Vagus
Runs with internal jug and common carotid
Branch, recurrent laryngeal
Phrenic - lies anterior surface of ant. scalene
Sympathetic trunk - medially located to carotid sheath

Question 9

Lymphatics

Answer 9

Superficial = lie with EJV
Deep = lie with IJV