NEET BIOLOGY

Detailed explanation-1: -Connective Tissue Proper. Fibroblasts are present in all connective tissue proper ([link]). Fibrocytes, adipocytes, and mesenchymal cells are fixed cells, which means they remain within the connective tissue. Other cells move in and out of the connective tissue in response to chemical signals.

Detailed explanation-2: -Loose connective tissue has some fibroblasts, although macrophages are present as well. Collagen fibers are relatively wide and stain a light pink, while elastic fibers are thin and stain dark blue to black. The space between the formed elements of the tissue is filled with the matrix.

Detailed explanation-3: -Fibroblasts are the most common resident cells in ordinary connective tissue. These are the cells responsible for secreting collagen and other elements of the extracellular matrix.

Detailed explanation-4: -Loose connective tissue (LCT), also called areolar tissue, belongs to the category of connective tissue proper. Its cellular content is highly abundant and varied. The ECM is composed of a moderate amount of ground substance and two main types of protein fibers: elastic and reticular fibers.

Detailed explanation-5: -Loose connective tissue (areolar) is located directly beneath the epidermis of the skin. Dense irregular connective tissue forms most of the dermis below the loose connective tissue. Dense irregular connective tissue has similar components as loose connective tissue.