In thick skin, which layer lies immediately deep to the Stratum Corneum?

In thick skin, which layer lies immediately deep to the Stratum Corneum?

• A. Stratum Lucidum
• B. Stratum Granulosum
• C. Stratum Spinosum
• D. Stratum Basale

Answer: (A)

In thick skin, the epidermal layers from the surface inward go Stratum Corneum, then Stratum Lucidum, then Stratum Granulosum, followed by Stratum Spinosum and Stratum Basale. The Stratum Lucidum is a thin, clear layer of flattened, dead keratinocytes that contains eleidin, and its presence beneath the Stratum Corneum provides extra toughness for areas like the palms and soles. This layer is a hallmark of thick skin and isn’t present in thin skin, where the next layer beneath the Stratum Corneum is Stratum Granulosum. So the layer immediately deep to the Stratum Corneum in thick skin is Stratum Lucidum.

In thick skin, the epidermal layers from the surface inward go Stratum Corneum, then Stratum Lucidum, then Stratum Granulosum, followed by Stratum Spinosum and Stratum Basale. The Stratum Lucidum is a thin, clear layer of flattened, dead keratinocytes that contains eleidin, and its presence beneath the Stratum Corneum provides extra toughness for areas like the palms and soles. This layer is a hallmark of thick skin and isn’t present in thin skin, where the next layer beneath the Stratum Corneum is Stratum Granulosum. So the layer immediately deep to the Stratum Corneum in thick skin is Stratum Lucidum.