Chapter 3 - Thoracic and Ribs Flashcards
Location of spinous processes in thoracics…
T1-3 = at the level T4-6 = 1/2 segment below T7-9 = 1 segment below T10 = 1 segment below T11 = 1/2 segment below T12 = at the level
Spine of scapula - level
T3
Inferior angle of scapula - level
T7 SP (so T8 body)
Sternal notch - level
T2
Sternal angle - level
Attaches to what?
T4
Rib 2
Nipple - dermatome
T4
Umbilicus - dermatome
T10
Main movement of upper/mid thoracics
Main movement of lower thoracics
Rotation
F/E (like lumbars)
Attachments of the diaphragm
Xyphoid process
Ribs 6-12
Bodies and intervertebral discs of L1-L3
Intercostals - actions (2)
Elevate ribs in inhalation
Prevent retractions during inhalation
2 primary muscles of respiration
Diaphragm
Intercostals
Secondary muscles of respiration (5)
Scalenes Pectoralis minor Serratus anterior and posterior Quadratus lumborum Latissimus dorsi
Typical ribs
What makes them typical?
3-10
Head, neck, tubercle, angle, shaft
Articulate w/ corresponding vertebrae and one above
Atypical ribs
Why?
1, 2, 11, 12
1 = articulates w/ T1 only, no angle 2 = large tuberosity on shaft for serratus anterior 11/12 = no tubercles, only articulate w/ their vertebrae
True ribs
Why?
1-7
Attach to sternum directly via costal cartilage
False ribs
How are ribs 8-10 attached?
8-12 (do not attach directly to sternum)
Their costal cartilage to the cartilage of the one above
Floating ribs
11, 12
Primarily pump handle
In what plane?
Around what axis?
1-5
Sagittal plane
Transverse axis
Primarily bucket handle
In what plane?
Around what axis?
6-10
Coronal plane
A-P axis
Primarily caliper motion
In what plane?
Around what axis?
11, 12
Transverse plane
Superior-inferior axis
Bucket handle - superior or inferior during inhalation?
SUPERIOR
Inhalation dysfunction - pump handle…
Movement that occurs?
Intercostal narrowing?
Prominent edge?
Tenderness and TTCs?
Cephalad on inspiration is OK
Anterior narrowing above the rib
Superior edge of posterior rib angle is prominent
TTCs @ CC junction, CS junction, posterior rib angles
Inhalation dysfunction - bucket handle…
Movement that occurs?
Intercostal narrowing?
Prominent edge?
Tenderness and TTCs
Lateral part moves cephalad on inspiration
Lateral narrowing above the rib
Lower edge of rib shaft is prominent
TTCs @ intercostal mm at mid-axillary line, posterior rib angles
Exhalation dysfunction - pump handle…
Intercostal narrowing?
Prominent edge?
Tenderness and TTCs
Anterior narrowing below the rib
Lower edge of posterior rib angle is prominent
TTCs @ CC jxn, CS jxn, posterior rib angles
Exhalation dysfunction - bucket handle…
Intercostal narrowing?
Tenderness and TTCs
Lateral narrowing below the rib
TTCs @ intercostal mm at mid-axillary line, posterior rib angles
Inhalation dysfunction…treat which rib?
Exhalation dysfunction…treat which rib?
Lowest rib
Highest rib
