Which statement accurately describes dense connective tissue proper?

• A. It includes Dense Regular and Dense Irregular fibers
• B. It consists of Bone and Cartilage
• C. It is a type of Liquid Connective Tissue
• D. It lines Mucous membranes

Answer: (A)

Dense connective tissue proper is defined by a dense network of collagen fibers in the extracellular matrix, with relatively little ground substance, giving it high tensile strength. It includes two main subtypes: dense regular connective tissue, where fibers run parallel to the direction of pull (as in tendons and ligaments), and dense irregular connective tissue, where fibers are arranged in many directions to resist stresses from multiple angles (as in the dermis and organ capsules).

This tissue is not bone or cartilage, which are specialized supportive connective tissues with different cell types and matrix composition. It is not a liquid connective tissue like blood or lymph. It also doesn’t line mucous membranes; those membranes consist of epithelium with a supporting connective tissue underlayer. The option describing dense regular and dense irregular fibers correctly captures what dense connective tissue proper is.