Multiple Choice
Which layer of the skin lacks blood vessels (is avascular)?
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5. Integumentary System
The Epidermis: Layers
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Which of the following layers of the epidermis is responsible for generating new epidermal cells?
A
Stratum basale.
B
Stratum spinosum.
C
Stratum granulosum.
D
Stratum corneum.
Verified step by step guidance1
Understand the structure of the epidermis: The epidermis is the outermost layer of the skin and consists of several sub-layers, each with distinct functions.
Identify the layers of the epidermis: The main layers include the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum.
Focus on the stratum basale: This is the deepest layer of the epidermis, located directly above the dermis. It is primarily responsible for generating new epidermal cells.
Learn about cell generation: The stratum basale contains keratinocytes that undergo mitosis, producing new cells that migrate upwards to replenish the epidermis.
Recognize the role of other layers: While the stratum basale generates new cells, the other layers, such as the stratum spinosum, granulosum, and corneum, are involved in cell maturation, protection, and shedding.
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