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A Fall That Broke His Arm (LONG BONE ANATOMY (Upper limbs (Fingers…
A Fall That Broke His Arm
LONG BONE ANATOMY
Upper limbs
Forearms
Palms
Arms
Fingers
Phalanges
Lower limbs
Sole o/ the foot
Toes
Legs
Femur
Thighs
Support & protection
Proximal epiphysis (top)
Articular cartilage
Thin cover of the joint
Hyaline cartilage
Function:
Reduces friction & absorbs shock in movable joints
Spongy bone
Function:
Stress resistant applied to many directions
Within the epiphysis
Closes to the body trunk
Epiphyseal line location
Diaphysis (shaft)
Function
: leverage & weight support
Spongy bone
Medullary cavity (marrow)
Red bone marrow as a child
Yellow bone marrow as an adult
Compact bone
Osteocyte location
Endosteum
Osteoblasts
Osteoprogenitor cell
Osteoclasts Nuclei
Periosteum
Perforating fibers
Cellular layer
Fibrous layer
Metaphysis
Contains the
epiphyseal plate
"The growth plate"
Epiphyseal line
in adults
Hyaline Cartilage
Distal epiphysis (bottom)
Articular cartilage
Furthest from the trunk