Phrenic and Vagus

Question 1

Right Vagus

Answer 1

Jugular foramen

(W/In Carotid Sheath)

Enters thorax ANTERIOR to Right Subclavian A— STA–>

Passes Posterior to Brachiocephalic Vein, SVC, and Root of R Lung (bronchus)

Esophageal Hiatus (T10) ** Passes through as POSTERIOR Vagal Trunk**

Posterior stomach

Question 2

Left Vagus

Answer 2

Jugular foramen

(W/In Carotid Sheath)

Passes through STA - ANTERIOR to Aorta (Arch)

Posterior to Left (Pulmonary artery, L Bronchus)

Esophageal Hiatus (T10) ** Passes through as ANTERIOR Vagal Trunk**

Anterior stomach

Question 3

Right Phrenic

Answer 3

SCM/ Ant Scalene

Ant to Subclavius Artery

Posterior Subclavius Vein

Posterior to Great Pulmonary Vessle

R. Lung/ SVC

R. Lung/ Heart

Passes through Vena Cava Hiatus of Diaphragm

Question 4

Left phrenic

Answer 4

SCM/ Ant Scalene

Ant to Subclavius Artery

Posterior Subclavius Vein

Ant. arch of aorta and Great pulmonary vessles

L. Lung/ Heart

Passes through Vena Cava Hiatus of Diaphragm

Question 5

What structures pass through the caval opening?

Answer 5

IVC
R. Phrenic

Question 6

What structures pass through the Esophageal opening?

Answer 6

Esophagus
Vagus
Esophageal arteries.

Question 7

What structures pass through the Aortic opening?

Answer 7

Thoracic duct
Azygos vein
Aorta