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.
Epidermisâouter layer. Capable of being hard and tough. Stratified squamous epithelium. Keratinocytes (the most common cell) produce a fibrous protein called . keratin. Avascular. Composed of five layers (strata) Â© 2018 Pearson Education, Inc.