Flashcards in thoracic wall Deck (31):
1
suprasternal notch @
T2
2
sternal angle @
T4-T5
3
xiphosternal @
T9
4
costal margin @
L3
5
thoracic outlet syndrome
symptoms involving structures in superior thoracic aperature (trachea, esophagus, vessels, and n's)
6
upper limit of thoracic cavity
suprapleural membrane
7
true ribs
upper 7, attached to sternum
8
false ribs
8-10 indirectly attached thru cartilage
9
floating ribs
11+12
10
diaphragm innervation
C345
sensory:
-central: phrenic
-peripheral: innercostal
motor: phrenic
11
external intercostal muscle mvmt
elevate ribs
12
internal intercostal mucles mvmt
depress ribs
13
ext intercostal direction
hands in pockets
14
int intercostal direction
hands in neighbors pockets, at rt angles to ext IC
15
innermost intercostal muscle action
depresses ribs
16
innermost intercostal muscles
transversus thoarcis
innermost intercostal
subcostal
17
internal thoracic A branches
superior epigastric
musculophrenic
18
sup epigastric course
goes under rectus abdominis
19
musculophrenic course
laterally and down alont the costal cartilage margin
20
ant and post IC A's do what
anastomose
21
posterior intercostal vein
drains into azygous venous system
22
ant intercostal veins
drain into internal thoracic vein
23
intercostal nerves
innervate all IC muscles
Ventral T2-T11
somatic motor
somatic sensory
sympathetic
24
subcostal nerve
ventral T12
travels in costal grooves
25
ant/post thorax mvmt
pump handle mvmt of ribs 2-6 and sternum
26
vertical dimension thorax mvmt
increased be depression and contraction of the diaphragm
27
lateral dimension thorax mvmt
increased by bucket handle mvmt of lower ribs 7-10
28
ant/post mvmt at costotransverse joint
pump handle, upper ribs, rotation
29
lateral mvmt at costotransverse joint
bucket handle, lower ribs, gliding
30
articulation of ribs and vertebrae
rib articulates with the superior facet of the same level vertebrae and the inferior facet of the vertebrae at the level above it
very little mvmt
31