GENERAL HISTOLOGY

Detailed explanation-1: -It provides structural support to the extracellular space of connective tissues. Due to its rigidity and resistance to stretching, it is the perfect matrix for skin, tendons, bones, and ligaments.

Detailed explanation-2: -A number of recent studies on tensile mechanical properties of individual collagen fibrils report modulus values ranging from 0.2 to 0.86 GPa for hydrated fibrils (16–18).

Detailed explanation-3: -Collagen. Collagen is the most abundant (  30%) protein in the body, and the largest component of the ECM, where it serves an essential structural role as provider of tensile strength to tissues and organs. It also plays an important role in the elasticity of a limited number of tissues, especially in tendons [8].

Detailed explanation-4: -Collagen fibers provide strength to the tissue, preventing it from being torn or separated from the surrounding tissues. Elastic fibers are made of the protein elastin; this fiber can stretch to one and one half of its length and return to its original size and shape. Elastic fibers provide flexibility to the tissues.