"reticular dermis"的定义和意义

What is "reticular dermis"?

The reticular dermis is the deeper layer of the dermis, located beneath the papillary dermis. It is composed of dense connective tissue, including collagen and elastin fibers, which provide strength, elasticity, and structural integrity to the skin. The reticular dermis contains blood vessels, sweat glands, hair follicles, and sensory receptors, contributing to the skin's overall function and responsiveness. It also plays a vital role in thermoregulation, wound healing, and providing support to the epidermis.