Question

question 3
2 pts
the nail body forms at the nail root, which has a matrix of proliferating cells from the ____________ that enables the nail to grow continuously.
hyponychium
stratum basale
eponychium
eccrine
question 4
2 pts
which skin layer is called the barrier area?
stratum lucidum
stratum basale
stratum granulosum
stratum corneum

Explanation:

For Question 3, the nail root has a matrix of proliferating cells from the stratum basale which enables nail - growth. The stratum basale is a layer of the epidermis with stem cells that can divide and differentiate. For Question 4, the stratum corneum is the outermost layer of the epidermis and acts as a major barrier, preventing water loss and protecting against pathogens.

Answer:

Question 3: stratum basale
Question 4: Stratum corneum