Matching Pairs Integumentary BasicsOnline version Match up the terms! by Kim Sandberg 1 Sweat 2 Melanin 3 Epidermis 4 How many layers of the skin are there? 5 Dermis 6 Protection, Temperature Regulation, Hydration Regulation, Sensory Perception, Synthesis of Vitamin D 7 Subcutaneous Layer Top layer of the skin Secreting this via pores lowers your body's overall temperature Connective layer of skin not visible to the naked eye. Functions of the Skin 2 The pigment producing portion of your skin. Below the epidermis and dermis layers of skin, composed of connective tissue and adipose fat