ihonalaiskudoksen

Ihonalaiskudos, also known as subcutaneous tissue or hypodermis, is the innermost layer of the integumentary system in vertebrates. It lies directly beneath the dermis, which is the layer of skin above it. The primary function of ihonalaiskudos is insulation, helping to regulate body temperature by trapping heat. It also serves as an energy reserve, storing fat, and provides cushioning and protection for underlying muscles and bones.

This layer is composed mainly of loose connective tissue and adipose tissue. The connective tissue contains collagen and elastin fibers, which provide structural support and elasticity. Adipose tissue consists of adipocytes, specialized cells that store fat. The amount of adipose tissue in the ihonalaiskudos can vary significantly between individuals and is influenced by factors such as genetics, diet, and exercise.

Blood vessels and nerves also run through the ihonalaiskudos, supplying nutrients to the skin and transmitting sensory information. Additionally, this layer is where larger blood vessels and nerves branch out to supply the dermis and epidermis. In some parts of the body, specialized structures like hair follicles and sweat glands can extend down into the subcutaneous layer. The ihonalaiskudos plays a crucial role in the overall health and function of the skin and the body as a whole.