Health (PERSONAL HYGIENE)

The nail matrix is the root of the nail from which the keratinized cells grow.

true

Overexposure to harsh elements, such as heat, sunlight, and chlorine, can cause your hair to become dry and brittle.

true

The appearance of your hair can indicate many things about your attitude and your health.

true

The cuticle protects the nail matrix from the invasion of harmful substances.

true

The free edge is the part of the nail plate that extends beyond the nail bed.

true

Match the following phrases with the corresponding terms. 1. the outer layer of skin that is responsible for the production of melanin and keratin 2. a protein substance necessary to healthy skin 3. the inner layer of skin that contains hair follicles and sweat glands 4. responsible for the production of sebum 5. an oily substance that protects the skin 6. the result of sebum being trapped in a follicle with a piece of dirt or bacteria 7. the results of sweat being allowed to sit on bacteria-crowded areas of the skin 8. the best means of prevention for body odor and acne

1. epidermis 2. keratin 3. dermis 4. sebaceous glands 5. sebum 6. acne 7. body odor 8. washing

The average person has approximately ____________ strands of hair on his or her head.

300,000

Hair color is determined by the melanin that is produced ___________

at the base of the follicle

The __________ of the hair strand is embedded in the hair follicle.

bulb

The _______________ consists of the fibers that surround the medulla.

cortex

The __________ is the outside layer of the strand.

cuticle

decomposition

decay

_____________ is another word for "decay."

decomposition

Like hair and skin, nails consist mainly of melanin.

false

The cuticle protects the skin at the tip of the finger and the bone underneath.

false

The free edge is covered by a thin layer of skin.

false

The only reason the Christian should practice personal hygiene is so that he will not offend other Christians.

false

Using lotion around the cuticle and drinking plenty of water will help prevent ingrown nails.

false

The shape of the hair is determined by the curvature of the _________

follicle

The ___________ is the soft core of the hair strand.

medulla

Healthy hair is dependent upon a diet with plenty of _________ and vitamin A.

protein

Fingernails should be trimmed at least once a week.

true

Keeping your body clean helps to prevent the spread of disease.

true

Keeping your nails clean will help protect you against the spread of harmful bacteria.

true