Question

1. which of the following statements best describes the lunula?

a) it is the thin tissue layer between the nail plate and the nail bed.
b) it is the nonliving colorless tissue attached to the nail plate.
c) it is the section of living skin that supports the nail plate as it extends toward the free edge.
d) it is the whitish, half - moon shape under the nail plates base.

1. identify a difference between the cuticle and the eponychium.

a) the cuticle contains nerves, blood vessels, and lymph, whereas the eponychium does not.
b) the cuticle is approximately 0.004 to 0.006 inch thick, whereas the eponychium is approximately 0.5 inch thick.
c) the cuticle is the dead tissue stuck to the nail plate, whereas the eponychium is the living skin under the proximal nail fold found at the nail plates base covering the matrix area.
d) the cuticle is the visible matrix part that extends from underneath the living skin, whereas the eponychium is the slightly thickened skin layer between the fingertip and the nail plates free edge.

1. identify a function of the hyponychium.

a) it forms a protective barrier that keeps microorganisms from infecting the nail bed.
b) it helps guide the nail plate along the nail bed as it grows.
c) it forms an important seal between the proximal nail fold and nail plate.
d) it attaches the nail bed and matrix to the underlying bone.

1. a tough band of fibrous tissue that links bones or keeps an organ in place is called________.

a) the stratum corneum c) collagen
b) a ligament d) the dermis

Explanation:

• Question 12: The lunula is the whitish, half - moon shape under the nail plate’s base.
• Question 13: The cuticle is the dead tissue stuck to the nail plate, whereas the eponychium is the living skin under the proximal nail fold found at the nail plate’s base covering the matrix area.
• Question 14: The hyponychium forms a protective barrier that keeps microorganisms from infecting the nail bed.
• Question 15: A tough band of fibrous tissue that links bones or keeps an organ in place is called a ligament.

Answer:

1. D) It is the whitish, half - moon shape under the nail plate’s base.
2. C) The cuticle is the dead tissue stuck to the nail plate, whereas the eponychium is the living skin under the proximal nail fold found at the nail plate’s base covering the matrix area.
3. A) It forms a protective barrier that keeps microorganisms from infecting the nail bed.
4. B) a ligament