Rib DSA Flashcards
what does a rib articulate with
- Inferior costal facet of vertebral ABOVE.
- Superior costal facet of OWN vertebra
tubercle of rib articulates with what?
TP of its own veretbra
joints on ribs
costochondral joint
sternal costal joint
Which ribs ONLY articulate with own vertebra
1
10
11
12
Which ribs do not have tubercles, thus, do not articulate with transverse process
rib 11
rib 12
Atypical ribs
1,
2,
11
12
and soemtimes 10
typical ribs
3-9 (somtimes 10)
What are true ribs
Ribs 1-7 (cartilage attach to the sternum)
What are the false ribs
8-12
8-10 cartilage attaches to the costal carilage of the rib ABOVE
11-12. are floating ribs and do not have anterior attachement
I get up at 1 AM 2 P
what is this telling us1.
- Anteiror scalene is located on superior surface of rib 1 and elevates the 1st rib
- Middle scalene is is on superior surface of rib 1 and elevates 1st rib
- Posteiorr scalene is located. on 2nd rib and lifts up 2nd rib
Where does pec minor muscle originate
anteiror superior surface of ribs 3, 4 and 5
What does pec minor do
stabilize the. scapula drawing it anteriorly and inferiorly.
Where is serratus anterior inserted?
axn
- Superior lateral surface o_f ribs 2-8_
protracts scapula
latissimus dorsi m
originate
originates on lower 4 ribs (9-12)
Role of quadratus lumborum
fix 12th rib in inhalation
external intercostal m.
axn
elevate ribs during FORCED inspiration
internal/innermost intercostals muscles
axn
depress the ribs