
To identify: The layers of the epidermis in the given image.
Introduction: Skin is the chief organ of the integumentary system. It makes up for about 16 percent of the total body weight. It is also the place or region where the body communicates with the external environment. Skin, along with the integumentary system forms the first line of defense against the hostile environment.

Answer to Problem 1CRQ
Pictorial representation: Fig.1 represents stratum corneum
Fig.1: Stratum corneum
Explanation of Solution
Epidermis is the outermost layer of the skin. It is made up of five layers namely stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. Stratum corneum is the outermost layer of the epidermis. It is the exposed surface of both thick and thin skin and contains 15 to 30 layers of keratinized cells, which are protective in function. The dead cells present in this layer remain interconnected by desmosomes. This layer is water resistant but it is not waterproof. The dead cells are present exposed on the stratum corneum for about two weeks after which they are shed away.
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