Question

while walking barefoot on the beach, joe stepped on a thorn that penetrated through the sole of his foot to the dermis. how many layers of epidermis did the thorn penetrate? 1 2 3 4 5

Explanation:

The epidermis of thick - skin areas like the sole of the foot has 5 layers: stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. Since the thorn penetrated through the sole's epidermis to the dermis, it passed through all 5 layers.

Answer:

E. 5