Ch. 5-9 Nails

Question 1

Nails

Answer 1

1. Protect fingers and toes
2. Made of dead cells packed with keratin
3. Metabolic disorders can change structure

Question 2

nail body

Answer 2

• visible portion of the nail, covers an area of epidermis called the nail bed
• Recessed deep to the level of surrounding epithelium
• bordered by lateral nail grooves and nail folds

Question 3

nail bed

Question 4

lateral nail grooves

Answer 4

depressions that border the nail body

Question 5

lateral nail folds

Answer 5

border the nail bed

Question 6

hyponychium

Answer 6

an area of thickened stratum corneum.

Question 7

nail root

Answer 7

• an epidermal fold not visible to the surface, where nail production occurs
• deepest portion lies close to bone of fingertip

Question 8

eponychium

Answer 8

cuticle. a portion of the stratum corneum of the nail root that extends over the exposed nail.

Where the visible nail emerges

Question 9

lunula

Answer 9

pale area at the base of the nail with the underlying blood vessels are obscured

Question 10

• visible portion of the nail, covers an area of epidermis called the nail bed
• Recessed deep to the level of surrounding epithelium
• bordered by lateral nail grooves and nail folds

Answer 10

nail body

Answer 11

nail bed

Question 12

depressions that border the nail body

Answer 12

lateral nail grooves

Question 13

border the nail bed

Answer 13

lateral nail folds

Question 14

an area of thickened stratum corneum.

Answer 14

hyponychium

Question 15

• an epidermal fold not visible to the surface, where nail production occurs
• deepest portion lies close to bone of fingertip

Answer 15

nail root

Question 16

cuticle. a portion of the stratum corneum of the nail root that extends over the exposed nail.

Where the visible nail emerges

Answer 16

eponychium

Question 17

pale area at the base of the nail with the underlying blood vessels are obscured

Answer 17

lunula