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BioMECH-Chapter 4-6

BIOMECH-Chapter 4-6

stiffness ability to resist
cortical bone compact mineralized bone with low porosity
trabecular bone less compact bone with high porosity
Wolff's Law the densities, and to a lesser extent, the sizes and shapes of bones are determined by the magnitude and direction of the acting forces
synarthroses joints immoveable
sutures in skull
amphiarthroses joints slightly moveable
diathroses (synovial)joints moveable
gliding non-axial (carpals, tarsals)
hinge biaxial (elbow)
pivot uniaxial (vertabrae)
condyloid biaxial (fingers)
saddle biaxial (thumb)
ball and socket triaxial (hip)
active stretching produced by active development of tension in the antagonist muscles
passive stretching produced by a force other than tension in the antagonist muscles
parallel elastic component passive elasticity derived from muscle membranes
series elastic component passive elasticity derived from tendons when a tensed muscle is stretched
concentric shortening
eccentric lengthening
isometric no change
Created by: afetterolf