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The structures highlighted in blue in the image are the layers of the skin called dermis andepidermis. Dermis layer lies beneath the epidermis, which is thesuperficiallayer.Our skin is composed of 2 layers: epidermis and dermis. Epidermis is the most superficial layer that is made up of closely packed epithelial cells. The epidermis is composed of stratified and keratinized squamous epithelium calledkeratinocytes, which are the cells that manufactures and store a protein called keratin. It has four or five layers of epithelial cells depending on where in the body it is. It has no internal blood vessels (i.e., it isavascular). The term "thin skin" refers to skin having four cell layers. These layers are the stratum Basale, stratum spinosum, stratum granulosum, and stratum corneum, and they are arranged from deep to surface.As opposed to the epidermis and hypodermis, the dermis could be regarded as the "core" of the integumentary system. It has nerves, blood and lymph vessels, as well as other parts including hairfolliclesand sweatglands. The two connective tissue layers that make up the dermis are joined by a network of elastin and collagen fibers that are created by fibroblasts.To know more aboutepidermis, refer:brainly.com/question/12993277#SPJ4...