1. What is the skin fold along each side of the nail plate called?
a. Onychodermal band
b. Eponychium
c. Lateral fold
d. Hyponychium
The answer is c. The skin fold along each side of the nail plate is called the lateral fold. Occasionally, you might
see the fold referred to as the paronychium.
2. The epithelial tissue that lies under the free edge and is distal to the nail bed is called what?
a. Eponychium
b. Hyponychium
c. Perionychium
d. Paronychium
The answer is b, hyponychium. Remember, the prefix hypo means under, and nychium refers to the claw/nail.
This tissue helps seal the distal edge of the nail bed and protects it from germs.
3. The lunula is the small, white crescent that is often visible at the base (proximal edge) of the nail plate.
a. True
b. False
The answer is true (a). The lunula is the white (lunar) crescent shape at the proximal edge of the nail plate.
4. The tissue under the nail plate that gives the nail its pinkish color is called what?
a. Hyponychium
b. Germinal matrix
c. Eponichyium
d. Nail bed (sterile matrix)
The answer is d, the nail bed, also called the sterile matrix, attaches to the nail plate and gives it its color.
5. The skin fold at the base (proximal end) of the nail's body is called what?
a. Hyponychium
b. Lateral fold
c. Proximal fold
d. Free edge
a. Onychodermal band
b. Eponychium
c. Lateral fold
d. Hyponychium
The answer is c. The skin fold along each side of the nail plate is called the lateral fold. Occasionally, you might
see the fold referred to as the paronychium.
2. The epithelial tissue that lies under the free edge and is distal to the nail bed is called what?
a. Eponychium
b. Hyponychium
c. Perionychium
d. Paronychium
The answer is b, hyponychium. Remember, the prefix hypo means under, and nychium refers to the claw/nail.
This tissue helps seal the distal edge of the nail bed and protects it from germs.
3. The lunula is the small, white crescent that is often visible at the base (proximal edge) of the nail plate.
a. True
b. False
The answer is true (a). The lunula is the white (lunar) crescent shape at the proximal edge of the nail plate.
4. The tissue under the nail plate that gives the nail its pinkish color is called what?
a. Hyponychium
b. Germinal matrix
c. Eponichyium
d. Nail bed (sterile matrix)
The answer is d, the nail bed, also called the sterile matrix, attaches to the nail plate and gives it its color.
5. The skin fold at the base (proximal end) of the nail's body is called what?
a. Hyponychium
b. Lateral fold
c. Proximal fold
d. Free edge
