Which epidermal layer is known for its spiny appearance and lies directly above the basal layer?

Which epidermal layer is known for its spiny appearance and lies directly above the basal layer?

• A. Stratum Germinativum
• B. Melanin
• C. Stratum Spinosum
• D. Hair Follicle

Answer: (C)

Stratum Spinosum is the layer that sits directly above the basal layer and is known for its spiny, prickly appearance. This look comes from desmosomes connecting the keratinocytes, which form spiny projections as these cells move up from the deeper layer and begin to keratinize. Because of these intercellular connections, the cells appear to have tiny spines when viewed histologically. The basal layer, also called the Stratum Germinativum, sits at the bottom and continually divides to replenish cells, while melanin is pigment, not a layer, and a hair follicle is a skin structure rather than an epidermal layer.

Stratum Spinosum is the layer that sits directly above the basal layer and is known for its spiny, prickly appearance. This look comes from desmosomes connecting the keratinocytes, which form spiny projections as these cells move up from the deeper layer and begin to keratinize. Because of these intercellular connections, the cells appear to have tiny spines when viewed histologically. The basal layer, also called the Stratum Germinativum, sits at the bottom and continually divides to replenish cells, while melanin is pigment, not a layer, and a hair follicle is a skin structure rather than an epidermal layer.