Health: Unit 3, Assignment 10

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

Like hair and skin, nails consist mainly of melanin. True False

False

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

False

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

False

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

False

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

False

Fingernails should be trimmed at least once a week. True False

True

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

True

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

True

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

True

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

True

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

True

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

True

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

True

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 cortex cuticle medulla

bulb

The _______________ consists of the fibers that surround the medulla. bulb cortex cuticle medulla

cortex

The _______ is the outside layer of the strand.

cuticle

_______ is another word for "decay."

decomposition

The shape of the hair is determined by the curvature of the _______.

follicle

The ___________ is the soft core of the hair strand. bulb cortex cuticle medulla

medulla

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

protein