During remodeling, what happens to the tensile strength of tissue?

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Multiple Choice

During remodeling, what happens to the tensile strength of tissue?

Remodeled tissue becomes stronger because the collagen matrix is reorganized and cross-linked. Right after injury, scar tissue is built largely from type III collagen and is loosely arranged, which gives low tensile strength. During remodeling, fibroblasts lay down more type I collagen, and the fibers align along the direction of mechanical load. This reorganization, along with increased cross-linking between collagen molecules, stabilizes the matrix and enhances its ability to resist pulling forces. As a result, tensile strength increases during remodeling, though it may not fully reach the strength of unrepaired tissue.

Remodeled tissue becomes stronger because the collagen matrix is reorganized and cross-linked. Right after injury, scar tissue is built largely from type III collagen and is loosely arranged, which gives low tensile strength. During remodeling, fibroblasts lay down more type I collagen, and the fibers align along the direction of mechanical load. This reorganization, along with increased cross-linking between collagen molecules, stabilizes the matrix and enhances its ability to resist pulling forces. As a result, tensile strength increases during remodeling, though it may not fully reach the strength of unrepaired tissue.

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