2: Thoracic spine and ribs Flashcards
thoracic vertebrae have __ to create kyphotic posture
anterior wedging
vertebral canal is ___ compared to cervical and lumbar canals
smaller (but less likely for herniation due to ribs)
Rule of threes
T1-3: same
T4-6: half level below
T7-9: one level below
T10: one
T11: half
T12: same
sternal notch is at level
T2 T3
xiphoid process is at
T9/10
true ribs: directly into sternum
false ribs: into cartilage on 7th rib
floating ribs:
true ribs: 1-7
false ribs: 8-10
floating ribs 11 and 12
atypical ribs have only 1 facet attaching to corresponding vertebral body. What ribs are they?
1st
10th
11th
12th
Second rib attaches to ____ but is considered atypical because it attaches anteriorly to _____
T1-2
anteriorly to junction between manubrium and sternum
upper thoracic costotransverse joint: ___ TP on ___ rib
convex TP on concave rib
*upper ribs are pump handle!
lower thoracic costotransverse joints are ___
planar joint
*bucket handle motion!
What is normal thoracic posture?
kyphotic 40 degrees
flatback posture affects what?
T-spine too extended
causes decreased expansion of posterior ribcage (upper 6 ribs)
Kyphotic thoracic posture leads to what?
increased flexion curve
increased force on disc and vertebral body
If ribs are rotated, what will be affected?
resting shoulder posture
Wide Infrasternal angle: over 100 degrees
SQUISHED FRONT TO BACK, FLARE SIDES
-tight IO
-long EO
-lifters! upper crossed syndrome
*treat in supine for better anterior expansion
treat with upper ribcage expansion, lower ribcage compression like downward wall reach
narrow infrasternal angle: below 90
SQUISHED SIDE/SIDE, NOT GREAT PUMP HANDLE
-tight EO
-long IO
*descended diaphragm
*treat with prone/quadruped for posterior expansion
What is normal max inhalation for ribcage with arms down?
arms up?
normal: 5-10 cm
arms up: 5 ish cm
What is abnormal rib expansion?
less than 3 cm
maybe short obliques
if subcostal margin does not increase with arms overhead, maybe short EOs
when shoulders are bilaterally elevated, thoracic spine is
extended
When one arm elevates, t-spine
ipsi rotation
lateral flexion
upper t-spine facets (frontal plane facet orientation) leads to…
ipsi coupling (same rotation, same SB)
lower t-spine sagittal plane facet orientation leads to…
contra coupling (ipsi rotation, contra SB)
describe the crime scene exercise
- prone with same arm and leg bent, head turns towards up arm
- breathe in nose 5 counts, exhale 5 counts
- hold for 60 seconds
for UPPER BACK
describe crocodile breathing pattern
- lie on stomach, pillow under lower ribs
- rest arms overhead
- inhale with nose 5 seconds, exhale with mouth.
- repeat 60 seconds, 3-4 sets.
FOR LOWER BACK