A vesicle is a small elevated blister or sac filled with a clear fluid located within or directly below which skin layer?

A vesicle is a small elevated blister or sac filled with a clear fluid located within or directly below which skin layer?

• A. Epidermis
• B. Dermis
• C. Subcutaneous tissue
• D. Stratum corneum

Answer: (A)

Vesicles are small, fluid-filled elevations that form in the epidermis, the skin’s outermost layer, and can sometimes lie just beneath it at the dermal-epidermal junction. This superficial location distinguishes them from larger blisters (bullae) that involve deeper layers like the dermis or subcutaneous tissue. The stratum corneum is the outermost sublayer of the epidermis, but vesicles are described by being within the epidermis or immediately under it, not confined to just that dead-cell layer. So, the layer involved is the epidermis.

Vesicles are small, fluid-filled elevations that form in the epidermis, the skin’s outermost layer, and can sometimes lie just beneath it at the dermal-epidermal junction. This superficial location distinguishes them from larger blisters (bullae) that involve deeper layers like the dermis or subcutaneous tissue. The stratum corneum is the outermost sublayer of the epidermis, but vesicles are described by being within the epidermis or immediately under it, not confined to just that dead-cell layer. So, the layer involved is the epidermis.