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Multiple Choice
The stratum lucidum is found only in which type of skin?
A
Thin skin, such as the eyelids
B
Thick skin, such as the palms and soles
C
All areas of the epidermis
D
Dermal tissue
Verified step by step guidance
1
Understand the structure of the epidermis, which is composed of five layers in thick skin and four layers in thin skin. The layers, from deepest to most superficial, are: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum (only in thick skin), and stratum corneum.
Recognize that the stratum lucidum is a thin, translucent layer of dead keratinocytes found only in thick skin. It provides an additional layer of protection and is located between the stratum granulosum and stratum corneum.
Identify the locations of thick skin in the body. Thick skin is found in areas subject to high friction and pressure, such as the palms of the hands and soles of the feet.
Contrast thick skin with thin skin. Thin skin lacks the stratum lucidum and is found on most parts of the body, including areas like the eyelids. Thin skin has fewer layers and is less protective compared to thick skin.
Conclude that the stratum lucidum is exclusive to thick skin, such as the palms and soles, and is not present in thin skin, all areas of the epidermis, or dermal tissue.