Chapter 18 Flashcards Preview

Esthiology Freshman Block > Chapter 18 > Flashcards

Flashcards in Chapter 18 Deck (21):
1

Catagen

Second transition stage of hair growth; in the Catagen stage, the hair shaft grows upward and detaches itself from bulb

2

Depilatory

Substance, usually a caustic alkali preparation, used for temporarily removing superfluous hair by dissolving it at skin level

3

Electrolysis

Removal of hair by means of an electric current that destroys the hair root

4

Epilation

Removes hairs from follicles; waxing or tweezing

5

Hair bulb

Swelling at the base of the follicle that provides the hair with nourishment; it is a thick, club shaped structure at the bottom of the root

6

Hair follicle

Mass of epidermal cells forming a small tube or canal, the tube like depression or pocket in the skin or scalp that contains the hair root

7

Hair papilla

Cone shaped elevations at the base of the follicle that fit into the hair bulb. The papillae are filled with tissue that contains the blood vessels and cells necessary for hair growth and follicle nourishment

8

Hair root

Anchors hair to skin cells and is part of the hair located at the bottom of the follicle below the surface of the skin; part of the hair that lies within the follicle at its base, where the hair grows

9

Hair shaft

Portion of the hair that extends beyond the skin

10

Hirsutism

Growth of an unusual amount of hair on parts of the body normally bearing only downy hair, such as face, arms and legs

11

Hypertrichosis

AKA hirsuties. Condition of abnormal hair growth. Characterized by the growth of terminal hair where there is normally only vellus hair.

12

Lanugo

The hair on the fetus; soft and downy hair

13

Laser hair removal

Photoepilation hair reduction treatment in which a laser beam is pulsed on the skin using one wavelength at a time, impairing hair growth

14

Photoepilation

AKA intense pulsed light. Permanent hair removal treatment that uses intense light to destroy the growth cells of hair follicle

15

Anagen

First stage of hair growth during which new hair is produced

16

Pilosebaceous unit

The hair unit that contains the hair follicle and appendages: the hair root, bulb, dermal papilla, sebaceous appendage, and arrector pili muscle

17

Sugaring

Ancient method of hair removal. The original recipe is sugar, lemon juice and water that is heated into a syrup, molded into a ball, and pressed into the skin and then quickly stripped away

18

Telogen

AKA resting phase; the final phase in the hair cycle that lasts until the fully grown hair is shed

19

Threading

AKA banding. Method of hair removal. Cotton thread is twisted and rolled along the surface of the skin, entwining hair in the thread and lifting it out of the follicle

20

Trichology

Scientific study of hair and its diseases and care

21

Vellus hair

AKA lanugo hair. Short, fine, unpigmented downy hair that appears on the body, with the exception of the palms of the hands and the soles of the feet