Nail Structure and Growth
Presentation
•
Other
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10th Grade
•
Easy
Lavaida Knox
Used 13+ times
FREE Resource
50 Slides • 18 Questions
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Multiple Choice
The natural nail unit includes
All parts of the finger from the tip to the first knuckle
All parts of the finger to the tip to the second knuckle
The nail plate and the nail bed but excludes the cuticle
Only the tip of the finger
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Multiple Choice
The natural nail is technically called the
Hyponychium
Cuticle
Lunula
Onyx
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Multiple Choice
The natural nail unit is mainly made up of ____, which is the fiber-shaped protein found in skin and hair.
Collagen
Elastin
Melanin
Keratin
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Multiple Choice
Identify a characteristic of a healthy nail.
It is soft but inflexible.
It has 50 to 75 water content.
Its surface is generally spotted and has deep grooves.
It is translucent, and the beige pinkish color of the nail bed shows through.
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Multiple Choice
The nail bed, nail fold, eponychium, paronychium, and hyponychium are collectively referred to as the
Cuticle
Perionychium
Bed epithelium
Lunula
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Multiple Choice
The _________ is the whole flap that covers the matrix, from the visible nail plate's edge to the first joint of the finger or toe.
Proximal nail fold
Bed epithelium
Perionychium
Lateral nail fold
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Multiple Choice
Which of the following statements is true of the nail plate?
It is the hardened keratin plate that rests on top of the nail bed.
It is the least visible and functional part of the nail unit.
It is formed by melanocytes.
It is water-resistant.
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Multiple Choice
What is the water content of a healthy nail?
5 to 10 percent
10 to 20 percent
15 to 25 percent
20 to 30 percent
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Multiple Choice
The _______ is the section of living skin that supports the nail plate as it extends toward the free edge.
Cuticle
Nail Matrix
Eponychium
Nail Bed
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Multiple Choice
The _______ is part of the natural nail that contains nerves, blood vessels, and lymph to nourish cells that differentiate and become keratinized to form the nail plate.
Cuticle
Matrix
Hyponychium
Eponychium
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Multiple Choice
Which of the following statements best describes the lunula.
It is the thin tissue layer between the nail plate and the nail bed.
It is the nonliving colorless tissue attached to the nail plate.
It is the section of living skin that supports the nail plate as it extends toward the free edge.
It is the whitish, half-moon shape under the nail plate's base.
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Multiple Choice
Identify a function of the hyponychium.
It forms a protective barrier that keeps microorganisms from infecting the nail bed.
It helps guide the nail plate along the nail bed as it grows.
It forms an important seal between the proximal nail fold and nail plate.
It attaches the nail bed and matrix to the underlying bone.
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Multiple Choice
A tough band of fibrous tissue that links bones or keeps an organ in place is called
The stratum corneum
Ligament
Collagen
The dermis
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Multiple Choice
Which of the following statements is true of the growth of the nail plate?
The nail plate's growth is affected by nutrition, exercise, and overall health.
The nail plate grows only in an almond shape.
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Multiple Choice
Which of the following grows the fastest?
Middle finger
Thumbnail
Little finger
Index finger
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Multiple Choice
Which of the following statements is true of nail growth rates?
Nail growth rates generally decrease with age.
Nail plates grow quicker in the winter than in the summer.
Toenail plates grow quicker than fingernail plates
Nail growth rates decrease significantly during the last trimester of pregnancy.
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Multiple Choice
The average rate of nail plate growth in an adult is about
1/10 to 1/8 inches per month
1/4 to 1/2 inch per month
1/2 to 3/4 inches per week
1/8 to 1/6 inch per week
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Multiple Choice
The complete nail plate replacement for a fingernail takes about
4-6 months
2 to 6 weeks
A year
Eight months
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