MICROANATOMY

Detailed explanation-1: -Embryonic connective tissue includes mucoid connective tissue and mesenchyme. Mucoid connective tissue is located within the umbilical cord as Wharton’s jelly and is a gelatinous tissue primarily composed of a ground substance with few collagen or reticular fibers.

Detailed explanation-2: -Collagen fibers are the strongest and thickest protein fibers found abundantly in the connective tissue. Elastin fibers are thinner fibers which can stretch and recoil while reticular fibers are highly branched delicate fibers found in organs that have lots of mesh-like structures.

Detailed explanation-3: -Elastic fibers are the third type of fibers in connective tissue. They are highly refractile, wavy, and thinner than collagens. They are slightly eosinophilic by H&E. Under electron microscopy they consist of two components, the central amorphous constituent (elastin) and the microfibrillar component.