Category: Integumentary System

The Importance of Caring for the Layer of Fat Beneath the Skin The layer of fat beneath our skin, known as subcutaneous adipose tissue, serves various vital functions in the body, including insulation, energy storage, and cushioning. This layer of...

Arrector Pili Muscles: The Key to Hair Erection The arrector pili muscles are small muscle fibers located next to the hair follicles that are responsible for elevating and erecting the hair strands. These muscles are activated by the sympathetic nervous...