Exam 2 Flashcards
(74 cards)
Load is an __________ force acting on the body causing internal reactions within the __________
External
Tissue
Stiffness
Ability of a tissue to resist a load
Internal resistance to a load
Stress
T/F
Strain is an internal change in tissue(length) resulting in deformation
True
Yield point
Point at which elasticity is almost exceeded
Tension
Force that pulls and stretches tissue
Compression loading is the _________ that results tissue crush-2 forces applied towards one another
Force
Force that moves across the parallel organization of tissue
Shearing
Bending is the combination of which 2 forces
Tension and compression forces
Wolfffs law
Bone strength increases and decreases as the functional forces on the bone increase and decrease
T/F
Osteoclasts are the cells that eat away old bone; decrease bone mass
True
Osteoblasts are ______ that .form bone increases bone ________; take minerals from the blood and deposit them in the bone
Cells
Mass
Closed fractures
Those where there is little movement or displacement
Open fractures involve displacement of the ______________ ends and breaking through the surrounding tissue
Fractured
Green stick
Bends/ cracks
Comminuted
More than 2
Linear
Vertical axis
Transverse
Transverse axis
Oblique
Random angle
Spiral
Torsion
Impacted
Compressed
Depressed
Blunt force
T/F
Stress fractures have no specific cause but with a number of possible causes
True
Characteristics of muscles
Irritability
Contractability
Extensibility
Elasticity