Chpt. 8 - Nail Structure & Growth

Question 1

Nails are an appendage of the skin and are part of what body system?

Answer 1

INTEGUMENTARY

Question 2

A healthy nail is smooth, shiny, & _____?

Answer 2

TRANSLUCENT

Question 3

The portion of the living skin on which the nail plate sits is the _____?

Answer 3

NAIL BED

Question 4

The hard protective plate found at the ends of fingers and toes are _____?

Answer 4

NATURAL NAILS

Question 5

The area under a healthy nail plate should appear _____?

Answer 5

PINKISH

Question 6

A main protein that is found in natural nails is _____?

Answer 6

KERATIN

Question 7

The nail bed is attached to the nail plate by a thin layer of tissue called the _____?

Answer 7

BED EPITHELIUM

Question 8

Nail cells are formed in what part of the nail structure?

Answer 8

THE MATRIX

Question 9

The nail plate is guided and helped along during its growth by a thin layer of tissue called _____?

Answer 9

BED EPITHELIUM (nail groove???? check!)

Question 10

The matrix continues to create new cells provided that _____?

Answer 10

IT RECEIVES NUTRITION AND IS KEPT HEALTHY

Question 11

The visible part of the matrix that extends from underneath the living skin is the _____?

Answer 11

LUNULA

Question 12

The most visible and functional part of the nail module is the _____?

Answer 12

NAIL PLATE

Question 13

The nail plate is constructed of how many layers of cells?

Answer 13

100

Question 14

The part of the nail plate that extends over the tip of the finger or toe is the ____?

Answer 14

FREE EDGE

Question 15

The dead, colorless tissue attached to the nail plate is _____?

Answer 15

THE CUTICLE

Question 16

The living skin at the base of the nail plate covering the matrix is the _____?

Answer 16

EPONYCHIUM

Question 17

Tough bands of fibrous tissue that connect bones are _____?

Answer 17

LIGAMENTS

Question 18

The slits or furrows on the sides of the nail plate are ______?

Answer 18

NAIL GROOVES

Question 19

The length, width, and curvature of nails are determined by the shape of what?

Answer 19

THE MATRIX

Question 20

In the normal adult, the average rate of nail growth is about ______?

Answer 20

1/10” PER MONTH

Question 21

A healthy natural nail will continue to grow provided there is no damage to what?

Answer 21

THE MATRIX

Question 22

Replacement of the natural fingernail usually takes how long?

Answer 22

4-6 months

Question 23

What fingernail grows the fastest?

Answer 23

MIDDLE FINGER

Question 24

The nail has a water content between?

Answer 24

15%-25%

Question 25

BED EPITHELIUM?

Answer 25

Thin layer of tissue between the nail plate and nail bed.

Question 26

CUTICLE?

Answer 26

Dead tissue that tightly adheres to the nail plate.

Question 27

EPONYCHIUM?

Answer 27

Living skin at the base of the nail plate covering the matrix area.

Question 28

FREE EDGE?

Answer 28

Part of the nail plate that extends over the tip of the finger or toe.

Question 29

HYPONICHIUM?

Answer 29

The slightly thickened layer of skin that lies beneath the free edge of the nail plate.

Question 30

LIGAMENT?

Answer 30

Tough bank of fibrous tissue that connects bones or holds an organ in place.

Question 31

LUNULA?

Answer 31

Whitish, half-moon shape at the base of the nail plate, caused by the reflection of light off the surface of the matrix.

Question 32

MATRIX?

Answer 32

Area where the natural nail is formed; this area is composed of matrix cells that make up the nail plate.

Question 33

NAIL BED?

Answer 33

Portion of the skin that the nail plate sits on.

Question 34

NAIL FOLD?

Answer 34

Fold of normal skin that surrounds the nail plate.

Question 35

NAIL GROOVE?

Answer 35

Slit of furrow on the sides of the nail.

Question 36

NAIL PLATE?

Answer 36

Hardened keratin plate covering the nail bed.

Question 37

NAIL UNIT?

Answer 37

All the anatomical parts of the fingernail necessary to produce the natural nail plate.

Question 38

NATURAL NAIL?

Answer 38

The hard protective plate of the nail composed mainly of keratin.

Question 39

ONYX?

Answer 39

The technical term for nail of the fingers or toes.