Final answer:
The reticular layer of the dermis includes dense connective tissue with collagen and elastin fibers. It is also well vascularized, containing blood vessels and capillaries, and has a rich nerve supply including nerves and sensory receptors for touch.
Step-by-step explanation:
The reticular layer in medicine refers to the deeper part of the dermis, which houses an array of important structures. This layer is composed of dense, irregular connective tissue, which includes a network of collagen and elastin fibers. These fibers give the skin its strength and elasticity, and also play a role in its ability to retain water.
In addition to its structural components, the reticular layer is also well vascularized, meaning that it contains a significant number of blood vessels and capillaries that supply nutrients to the skin and aid in waste removal. Moreover, it encompasses a rich sensory and sympathetic nerve supply, which includes nerves and sensory receptors that contribute to the sense of touch.
Therefore, the structures housed in the reticular layer of the dermis include:
Blood vessels and capillaries that provide nutrients and remove wastes
Nerves and sensory receptors that make the skin a primary sensory organ for touch