In the viscoelastic model of tissue, which portion provides immediate, reversible deformation?

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Multiple Choice

In the viscoelastic model of tissue, which portion provides immediate, reversible deformation?

Explanation:
Immediate, reversible deformation comes from the elastic portion. The elastic element acts like a spring, so when a load is applied it deforms instantly in proportion to the stress, and once the load is removed it springs back to its original length, returning the stored energy. In contrast, the viscous portion behaves like a dashpot, showing time-dependent deformation (creep) under sustained load and not returning immediately or completely when the load is removed. The tissue’s overall response combines both behaviors, but the instantaneous, reversible change is due to the elastic component.

Immediate, reversible deformation comes from the elastic portion. The elastic element acts like a spring, so when a load is applied it deforms instantly in proportion to the stress, and once the load is removed it springs back to its original length, returning the stored energy. In contrast, the viscous portion behaves like a dashpot, showing time-dependent deformation (creep) under sustained load and not returning immediately or completely when the load is removed. The tissue’s overall response combines both behaviors, but the instantaneous, reversible change is due to the elastic component.

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