MICROANATOMY

EPITHELIUM CONNECTIVE TISSUE SKIN

INTEGUMENT

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What is found in the epidermis and helps protect the skin?

A	dermis
B	keratin
C	nothing
D	None of the above

Explanation:

Detailed explanation-1: -The top layer of the epidermis. This is the layer of the epidermis that you see. In the stratum corneum, keratinocytes become corneocytes (corn-ee-o-site). Corneocytes are strong, dead keratinocytes, and they protect you from harm, including abrasions, light, heat and pathogens.

Detailed explanation-2: -Keratinocytes contribute to protecting the body from ultraviolet radiation (UVR) by taking up melanosomes, vesicles containing the endogenous photoprotectant melanin, from epidermal melanocytes. Each melanocyte in the epidermis has several dendrites that stretch out to connect it with many keratinocytes.

Detailed explanation-3: -The keratinised squames layer (stratum corneum) is the final layer. These are layers of dead cells, reduced to flattened scales, or squames, filled with densely packed keratin.

There is 1 question to complete.