Question

1. cosmetologists should have a thorough understanding of nail structure and growth because

a) they are physicians specialized in a medical branch of science that involves the study of nails and their structure
b) they must be able to differentiate between the nail cuticle and the eponychium before performing nail services
c) they are responsible for informing clients about the parts of the nails that will be affected as a result of the nail services offered by them
d) it will help them diagnose, prescribe medications for, and provide treatment for nail diseases

1. identify a reason why cosmetologists should be knowledgeable about nail structure and growth.

a) understanding nail structure helps cosmetologists diagnose and treat irregular nail conditions.
b) cosmetologists are responsible for imparting the biological aspects of nail structure to staff members.
c) understanding natural nail structure and growth cycles prepares cosmetologists for advanced nail services.
d) cosmetology is the branch of medicine dealing with the natural nail unit and its major parts.

1. the natural nail unit includes

a) all parts of the finger from the tip to the second knuckle
b) all parts of the finger from the tip to the first knuckle
c) the nail plate and the nail bed but excludes the cuticle
d) only the tip of the finger

1. the natural nail is technically called the

a) hyponychium c) lunula
b) cuticle d) onyx

1. the natural nail unit is mainly made up of, which is the fiber - shaped protein found in skin and hair.

a) collagen c) melanin
b) elastin d) keratin

Explanation:

1. Cosmetologists need to differentiate between nail cuticle and eponychium before performing services. Option B is correct as it directly relates to their service - performing requirement.
2. Understanding nail structure helps in diagnosing and treating irregular nail conditions. Option A is correct as it is a fundamental reason for their knowledge requirement.
3. The natural nail unit includes all parts of the finger from the tip to the first knuckle. Option B is correct based on the standard definition of the natural nail unit.
4. The natural nail is technically called the onyx. Option D is correct as it is the scientific term for the natural nail.
5. The natural nail unit is mainly made up of keratin, which is a fiber - shaped protein found in skin and hair. Option D is correct as keratin is the key component.

Answer:

1. B. they must be able to differentiate between the nail cuticle and the eponychium before performing nail services
2. A. Understanding nail structure helps cosmetologists diagnose and treat irregular nail conditions.
3. B. all parts of the finger from the tip to the first knuckle
4. D. onyx
5. D. keratin