A4. Pleural cavity and mediastinum

Question 1

which nerve innervates the diaphragm?

Answer 1

phrenic nerve

Question 2

phrenic nerve

Answer 2

originates at C 3-4-5

central portion of diaphragm

c 3,4,5 keeps the diaphragm alive

Question 3

fissure

Answer 3

where two layers (lobe) of visceral pleura meet

Question 4

recess

Answer 4

where two layers of parietal pleura meet

ex: costodiaphragmatic recess

Question 5

mediastinum

Answer 5

space between the two pleura

Question 6

lines of reflection

Answer 6

changes is pleura directions

Question 7

if there is fluid in the pleura sac, where do you stick needle to drain?

Answer 7

9th intercostal space

Question 8

superior mediastinum

Answer 8

everything above sternal angle, pericardium, and T5

Question 9

anterior mediastinum

Answer 9

in front of pericardium

Question 10

middle mediastinum

Answer 10

pericardium

Question 11

posterior mediastinum

Answer 11

behind the pericardium

Question 12

what is in the superior mediastinum?

Answer 12

trachea

Question 13

thoracic duct

Answer 13

main vessel of the lymphatic system

Question 14

vagus nerve

Answer 14

supplies pulmonary, esophageal, and cardiac plexus