Mediastinum

Question 1

two divisions of mediastinum

Answer 1

superior and inferior

Question 2

inferior mediastinum contains

Answer 2

anterior, middle, posterior

Question 3

anterior mediastinum boundaries

Answer 3

transverse thoraces, sternum, costal cart fibrous pericardium, parietal pleura

Question 4

anterior contents

Answer 4

sternopericardial lig, thymus, interval thoracic vessels, fat, LN, nerves

Question 5

middle contents

Answer 5

heart, pericardium, phrenic vessels, pnrehnic N, esoph behind L atria

Question 6

superior and posterior layer 1

Answer 6

SVC, IVC, brachiceph veins, azygous arch

Question 7

superior and posterior layer 2

Answer 7

great arterial vessels, lig arteriosum

Question 8

superior and posterior layer 3

Answer 8

trachea, vagus N and recurrents, esoph, thoracic aorta (trachea is SUPERIOR

Question 9

superior and posterior layer 4

Answer 9

thoracic duct/azygous,

Question 10

superior and posterior layer 5

Answer 10

autonomic nerves

Question 11

azygous arch

Answer 11

continuation of vein. moves posterior to anterior, superior to ROOT OF LUNG

Question 12

ligamentum arteriosum

Answer 12

vestige of fetal ductus arteriousis, left pull A> aortic arch. contracts with high 02, point of trauma

Question 13

where are pectinate muscles

Answer 13

R A ONLY

Question 14

esophagus and vagus N

Answer 14

LARP (anterior vs posterior)

Question 15

R recurrent laryngeal loops around

Answer 15

brachioceph artery

Question 16

superior vena cava syndrome

Answer 16

tumor compress SVC, tributaries, and right recurrent laryngeal (swelling of venous blood in upper extreme)

Question 17

what is between azygous vein and descending aorta

Answer 17

thoracic duct

Question 18

when does thoracic duct cross R to L

Answer 18

t4

Question 19

where does thoracic duct dump

Answer 19

left venous angle