American Academy of Professional Coders (AAPC) Practice Exam

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What type of tissue primarily makes up the dense layer of the stratum Reticulare?

  1. Loose connective tissue

  2. Adipose tissue

  3. Dense, irregular connective tissue

  4. Cartilage

The correct answer is: Dense, irregular connective tissue

The dense layer of the stratum reticulare is primarily composed of dense, irregular connective tissue. This type of connective tissue is characterized by a high density of collagen fibers that are interwoven in various orientations. This structure provides strength and elasticity, which are essential for the skin's ability to withstand various stresses and strains. The dense, irregular connective tissue in the reticular layer supports the skin's structure and helps anchor the epidermis while facilitating the passage of blood vessels and nerves. Loose connective tissue, while present in other areas of the body, does not provide the same level of tensile strength and is not the main component of the reticular layer. Adipose tissue is specialized for fat storage and is typically found in the hypodermis, not in the reticular layer of the dermis. Cartilage, on the other hand, has a different function and composition, being specialized for support and flexibility in joints rather than forming the dense layer of the skin.

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