Ribs MET/ART Flashcards
Surface anatomy landmarks when examining ribs
Midsternal line
Midclavicular line
Anterior axillary line
Midaxillary line
Bony landmarks for rib exam
Manubrium Body of sternum Xiphoid process Clavicle First rib Ribs 2-10 with intercostal spaces Floating ribs 11 and 12 Typical ribs 3-9 Atypical ribs 1,2,10,11,12
What accessory muscles of respiration contract to elevate ribs 1 and 2?
Rib 1 = anterior and middle scalenes
Rib 2 = posterior scalenes
Contraction of this muscle can cause anterior (inhalation) rib dysfunction; engaging it can help to treat exhalation dysfunctions
Pec minor
What is the accessory muscle of inhalation when the scapula is fixed in place (ex: COPD patient grasping bedrail)
Serratus anterior m
What type of motion is present at ribs 1 and 2?
Rib 1 = 50% pump, 50% bucket
Rib 2 = primarily pump
What type of motion is present at ribs 3-6?
Mixed pump and bucket
What type of motion is present at lower ribs 7-10?
Primarily bucket
What type of motion is present at floating ribs 11 and 12?
Caliper
Typical vs. atypical ribs
Typical = 3-9
Atypical = 1, 2, 10, 11, 12
Which ribs only articulate with their own vertebrae (not the one above as well)?
1
10
11
12
Which ribs do not have tubercles (and therefore do not articulate with transverse processes)?
11
12
What type of dysfunction:
Rib on symptomatic side is statically cephalad
Inhalation dysfunction
What type of dysfunction:
Rib on symptomatic side is statically caudad
Exhalation dysfunction
With a rib 4-8 exhalation dysfunction, what is your key rib and what muscle is associated with this dysfunction?
Key rib = top, so rib 4, which is associated with pec minor
