Question

question # 17
fill in the blank
fill in the blank.
the nail is formed in the nail

question # 18
fill in the blank
fill in the blank.
the thin layer of skin covering the base of the nail is called the

Explanation:

In human anatomy, nails are formed in the nail matrix. The thin - layer of skin covering the base of the nail is called the cuticle.

Answer:

Question #17: matrix
Question #18: cuticle