Is the integumentary system made up of just one kind of tissue?
No, there is actually more than one kind of tissue in the integumentary system. The outermost layer, the layer you can touch, is stratified squamous epithelium. This layer, which includes both a layer of cells that are living & a layer of the same cells which have died, is the epidermis. Our hair & nails are produced by these cells also. There are no blood vessels in this tissue layer. The next layer, which is deep to the epidermis, is the dermis. It is mainly dense irregular connective tissue and does contain blood vessels, receptors for touch, etc., sweat (sudoriferous) glands, & oil (sebum) glands. Hair follicles are embedded in this layer, although they are formed from epidermal cells. 3. What causes us to have fingerprints? Fingerprints are formed by dermal papillae, ridges on the outermost surface of the dermis which push up into the epidermal layer. They are sometimes referred to as “friction ridges” because they enable us to grip smooth objects more easily. 4. What are the dang
