Pleural cavity Flashcards
what is the space between the lungs called
medistinum
what are the two lung pleura and what do they line
Visceral pleura- lines lungs
Parietal pleura- lines thoracic walls
parts of the parietal pleura (4)
Costal part, cervical pleura, mediastinal part, diaphragmatic part
what is the costal pleura attached to the thoracic wall by and what innervates it
inn: intercostal nerve
attached to wall by endothoracic fascia
which part of the parietal pleura is continous with the visceral pleura
mediastinal at the root of the lung
what inn the medial and lat part of cervical pleura
med: phrenic nerve
lat- 1st intercostal n
What parts of the parietal pleura are inn by the phrenic nerve and where would pain present on the dermatomes (3)
Mediastinal
Diaphragmic
med half of cervical
C5 dermatome, shoulder region
how far does the costomediastinal recess go down on the right and the left
Right- down to rib 4 (becuase of cardiac notch)
left- down to rib 6
Where does the costodiphragmatic recess start and rib levels (at mid axial and mid scap)
at rib 6 it starts (right after costomediastinal recess) and descends laterally where it relates to rib 10 at mid axial and ends around rib 12 at scapular line
what artery and vein supply costal and mediastinal pleura
costal–> intercostal aa and veins
Mediastinal–> pericardinal phrenic artery and vein
right lung fissures and lobes
Left lung fissures and lobes
R-3 lobes= sup, mid, inf (oblique and horizontal fissure)
L-2 lobes= sup and inf (just oblique fissure between)
Contents of hilum of right lung and orientation
Bronchus- most post
R pulmonary aa- has sup and inf portion, just ant to bronchus
Pulnoary v- sup is ant to bronchus and inf is just inf to bronchus
Contents of hilum of left lung and orientation
Bronchus- central pos
pul aa- most sup
pul v- sup is ant to bronchus and inf is inf
what grooves/impressions does the right lung have (7)
- groove for sup vena cava
- groove for brachiocephalic v
- groove for arch of azygos
- groove for esophagus
- cardiac impression (produced by right antrum)**
What grooves/impressions does left lung have (4)
groove for decending aorta
groove for arch of aorta
groove for left subclavian artery
cardiac impression
what do the main bronchus split up into on each lung
R- splits to 3 lobar bronchus ( sup, mid, inf)
L- splits to 2 lobar bronchus ( sup and inf)
after the lobar bronchi what does it split up into and how many are there
segmental bronchi which there are 10 of in each lung
what is the end of the conducting system in the tracheobronchial tree
Terminal bronchiole
which pulmonary aa is longer and what does it pass underneath (and what level does r and left branch)
right is longer as it has to pass under arch of aorta
-branches at sternal angle
what aa supply the r broncus
bronchial artery from interocstal aa on right and thoracic aorta
what drains the bronchiole veins on right and left
azygous on left and hemiazygous on right (to sup vca)
what does the superficial + deep lymphatic plexus drain into
sup-bronchopulmonary lymph nodes
deep- peribronchiolar –> bronchopulmonary
path of lymph after bronchopulmonary lymph nodes
sup and inf tracheobronchial nodes
trancheomediastinal nodes
right and left lymphatic duct
overall auto inn of lungs is from (and sympathetic and parasympathetic)
pulmonary nerve plexus
sympathetic-> cardiopulmonary splanchnic n (t1-5)
para–> vagus
What does sympathetic and parasympathetic inn cause in teh lungs
symp- bronchodialation , constriction of pumonary vessels
para- bronchioconstric, mucus secretion and dialation of pulmoary vessels
what is a pneumothorax and hemothroax
pneumo- pen of thoracic wall which will cause lung to collapse
Hemo- intercostal v and aa will be damaged and cause blood to accumulate in costodiaphragmatic recess
