GENERAL HISTOLOGY

Detailed explanation-1: -Dermal fibroblasts produce collagen fibers; structural proteoglycan and elastin which embed macrophages and immune competent mast cells; 70% of the dermis is constructed by collagen protein which maintains skin toughness and strength.

Detailed explanation-2: -A net-like structure of elastin fibers and collagen fibers surrounds the reticular dermis. These fibers support your skin’s overall structure, as well as allow it to move and stretch.

Detailed explanation-3: -Type I is the main collagen found in skin, representing 80%-90% of skin collagen. It is produced by cells called fibroblasts, which are a mesenchymal cell type, found predominantly in the dermis.

Detailed explanation-4: -The papillary layer, the upper layer of the dermis, contains a thin arrangement of collagen fibers. The lower layer, known as the reticular layer, is thicker and made of thick collagen fibers that are arranged parallel to the surface of the skin.