Lecture Notes on Collagen and Mechanical Properties

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This set of flashcards covers key concepts related to collagen structure, its mechanical properties, and related phenomena in connective tissues.

Last updated 3:39 PM on 11/30/25
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10 Terms

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Collagen

A protein made of long filamentous molecules that provide strength and structure to various tissues.

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Tropocollagen

The basic structural unit of collagen, composed of three polypeptide chains twisted together.

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Types of Collagen

There are eleven genetically distinct types of collagen, each varying in terms of polypeptide composition and distribution in connective tissues.

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Stress

The applied force on a collagen fiber, measured in Newtons.

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Strain

The degree of deformation experienced by a fiber, measured as a fraction or percentage increase in its original length.

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Crimp

The wavy, sinuous shape of collagen fibers at rest.

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Creep

The gradual, almost imperceptible deformation of connective tissue under a sustained load.

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Hysteresis

The difference in mechanical behavior of a material when loaded versus unloaded, resulting in energy loss.

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Adjustment

The difference between the initial and final length of a ligament or capsule after a load has been removed.

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Fatigue Rupture

The weakening and eventual rupture of a material due to repeated application of stress below its maximum elastic limit.