Which connective tissue type is exemplified as a loose connective tissue with a flexible extracellular matrix?

Which connective tissue type is exemplified as a loose connective tissue with a flexible extracellular matrix?

• A. Dense regular connective tissue
• B. Elastic cartilage
• C. Areolar connective tissue
• D. Adipose tissue

Answer: (C)

Areolar connective tissue exemplifies a loose connective tissue with a flexible extracellular matrix. Its matrix is a loose, gel-like ground substance rich in proteoglycans, with a network of collagen and abundant elastic fibers. This arrangement allows substantial pliability, diffusion of nutrients and immune cells, and cushioning between structures. In contrast, dense regular connective tissue has densely packed, parallel collagen fibers that make it strong but less flexible; cartilage provides a firm, structured matrix, not a loose one; adipose tissue has a sparse fibrous framework and mainly stores fat. So the flexible, loosely organized matrix of areolar connective tissue is the best fit.

Areolar connective tissue exemplifies a loose connective tissue with a flexible extracellular matrix. Its matrix is a loose, gel-like ground substance rich in proteoglycans, with a network of collagen and abundant elastic fibers. This arrangement allows substantial pliability, diffusion of nutrients and immune cells, and cushioning between structures. In contrast, dense regular connective tissue has densely packed, parallel collagen fibers that make it strong but less flexible; cartilage provides a firm, structured matrix, not a loose one; adipose tissue has a sparse fibrous framework and mainly stores fat. So the flexible, loosely organized matrix of areolar connective tissue is the best fit.