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Flashcards in Third Element of Physics Deck (21)
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1

What are some general effects of ultraviolet?

Increased perspiration
Potential premature ageing
Produces tan
Required for Vitamin D synthesis
Increased desquamation

2

What are the characteristics of erythema?

REDNESS OF SKIN
Dilation of blood vessels

3

Physiological effect of Erythema

Increased supply of nutrients to the skin

4

What are some general effects of infrared?

Erythema
Increased perspiration
Increased circulation
Dilation of pores
Muscle relaxation
Increased absorption of product

5

What are the characteristics of Tanning?

Skin pigmentation darkens.

6

Physiological effects of tanning

UV rays stimulate melanocytes to produce melanin.

7

What are some characteristics of desquamation?

Shedding of epithelial tissues

8

Physiological effect of desquamation

Removal of dead skin cells improving appearance of skin.

9

What are som characteristics of perspiration?

Excretion of water through the skin

10

Physiological effects of perspiration

Evaporates and cools skin
Remove waste from skin
Temperature control

11

Health and safety - UV and IR

Protect eyes with googles
UV applied at 76-91cms
IR applied at 76cms
Remove contact lenses
Remove all jewellery
Never leave client
Check skin reaction

12

Wavelengths - radio waves?

Greater than 0.3m

13

Wavelengths - microwaves?

1mm-0.3m

14

Wavelengths - infrared?

700nanometres - 1mm

15

Wavelengths - visible?

400nm - 700nm

16

Wavelengths - Ultraviolet?

10-400nm

17

Examples of radio waves

Mobiles, radars and radios.

18

Examples of microwaves

Bluetooth, gps and microwave.

19

Examples of infrared

Produce heat and warm skin

20

Examples of visible

Detected by the human eye

21

Examples of ultraviolet

Breaks down elastin and collagen
Penetrates epidermis