thoracic skeleton : thoracic vertebrae sternum ribs
TRANSCRIPT
Thoracic skeleton :
Thoracic vertebrae
Sternum
Ribs
A. The spinal columnA. The spinal columnVertebrae
Seven cervical vertebrae (C1–C7) neck
Twelve thoracic vertebrae (T1–T12upper back
Five lumbar vertebrae (L1–L5) lower back
Sacrum
Coccyx
Abnormal Curves
• Scoliosis-abnormal lateral curve of more than 10°
• Kyphosis-exaggerated thoracic curve
• Lordosis-accentuated lumbar curve
bodybody
Vertebral Parts
spinous processspinous process
vertebral vertebral foramenforamen
transverse processtransverse processlaminalamina
pediclepedicle
rib facetrib facet
Discs
Disc Degeneration
T9
T10
T11
T12
T11
T10
T1
Typical Ribs
• HeadArticulates with 2 Demifacets
• Neck
• Tubercle
• Shaft costal groove at inferior border
• Angle
• Anterior end
Rib
neckneck
tubercletubercle
costal costal groovegroove
shaftshaft
headhead
The first rib (R1): superior surface
Atypical ribs
Sternum
manubriummanubrium
clavicular clavicular notchnotch
Suprasternal Suprasternal notchnotch
xiphoid processxiphoid process
bodybody
sternal sternal angleangle
intercostal intercostal spacespace
True Ribs (7 pairs)
12
345
67711
3322
44
5555FloatingFloatingFloatingFloating
False Ribs (5 pairs)False Ribs (5 pairs)