On the flip side, if youâre not closely monitoring your blood sugar levels, they can drop too low. 1  Warning signs of low blood sugar, or hypoglycemia, include: 2  Dizziness. 3  Irritability. 4  Sweating. 5  Weakness. 6  Lack of coordination.
1. Epidermis. This outer (superficial) layer of skin, composed of keratinized stratified squamous epithelium, derives from embryonic surface ectoderm. It is avascular, receiving nourishment from vessels in the underlying dermis. Its only innervation (nerve supply) is by unencapsulated (free) nerve endings.
Summary: The epidermis is the tough, outer layer of the skin that has to protect skin from external agents whereas the dermis is the innermost layer that protects the skin from the temperature variations, acts as insulation for the body and gives sensations of touch, pain and pressure.he epidermis has no blood vessels and is composed of many layers stacked one above the other. It is made up of keratinocytes, melanocytes and other cells. The melanocytes present in this layer give skin the color that we see.