Thoracic wall Flashcards
What is this? what spinal level is it at?
Sternal notch
T2
What is this?
What spinal level is it at
how many pairs of ribs attach to the sternum?
xiphoid process
t9
7 pairs of ribs
which part of the rib is a frequent spot for fracture?
the angle of the rib, because its where the shaft bends sharply forward
what is this? what level is it at? what is its clinical signfiicance? (what is it a landmark for)
sternal angle
T4-T5
arch of aorta, bifurcation of the trachea
what replaces this inferiorly?
external intercostal muscle
external intercostal membrane replaces them anteriorly (lies between the costal cartliages)
what is this?
what is it replaced by and where?
internal intercost muscles
replaced by internal intercostal membrane inferiroly
intercostal vein
intercostal artery
intercostal nerve
“VAN”
what is this?
what does it branch off of?
what does it supply blood to?
1 musculophrenic artery
2 internal throacic artery
3 superior aspect of the diaphragm
what si this?
waht does it branch off of?
whats its significance?
- Superior Epigastric Artery
- internal thoracic
- anastomoses with the inferior epigastric artery
can enlarge with coarction of the aorta
what is this?
where does it come from?
what are its branches?
internal thoracic artery
- subclavian artery
- musclophrenic, superior epigastric, anterior intercostal, anterior perforating, and pericardiacophrenic arteries.
where do internal thoracic veins drain into? where does the blood go after that?
internal throacic v. -> azygous system -> SVC
What is this?
what are they called on the right lung? on the left?
secondary bronchi
superior, middle, inferior on right lung
superior and inferior in left lung
left superior and inferior secondary bronchi
what side lung is this?
what is this fissure? what does it seperate?
left side lung (RALS)
oblique fissure seperating superior and inferior
what side lung is this?
what are the arrows indicating
right side… arteries are anterior to the bronchi
pulmonary veins (are vagrant in respect to bronchi)
what is green? red? what do they eachs eperate?
green is horizontal fissure.. seperating superior and middle
red is oblique seperating middle and inferior, and superior and inferior
costal surface
medialstinal surface
diaphragmatic surface
*anatomiccal base of the lung
anterior border
what is this?
what is its significance
inferior border
defines the “clinical base of the lung” (??)
what is this
apex of the lung
posterior border of the lung
anatomical border of the lung ????
what is 5?
base of the lung
tertiary bronchi
