Lesson 1

Question 1

Skin covers approximately _______ sq feet and weighs _____ pounds

Answer 1

22

8

Question 2

Primary components of dermis

Answer 2

• Collagen
• Elastin
• Glycosaminoglycans
• Mucopolysaccharides

Question 3

Examples of mucopolysaccharides

Answer 3

• Hyaluronic acid

- Dermatin

Question 4

Function of dermal fibroblast cells

Answer 4

responsible for production/homeostasis of underlying structural layer of skin by:
synthesis & excretion of fibrillar proteins

Question 5

Ruffini endings detect

Answer 5

Stretching of skin

Question 6

Krause end bulbs are

Answer 6

Thermoreceptors

Question 7

Pacinian corpuscles detect

Answer 7

deep pressure/vibration

Question 8

3 routes of skin penetration

Answer 8

• direct transdermal
• transfollicular
• via eccrine gland

Question 9

Solubility parameter of stratum corneum

Answer 9

8

Question 10

Thickness of stratum corneum

Answer 10

about 20 layers

Question 11

Emulsions are

Answer 11

liquid/liquid dispersions

Question 12

Gels consist of

Answer 12

Polymer / thickener dispersions

Question 13

Minodixil is an OTC used for

Answer 13

hair growth

Question 14

The international cosmetic handbook/dictionary contains more than _______ INCI labeling names

Answer 14

19,000