Flashcards in Third Element of Physics Deck (21)
What are some general effects of ultraviolet?
Potential premature ageing
Required for Vitamin D synthesis
What are the characteristics of erythema?
REDNESS OF SKIN
Dilation of blood vessels
Physiological effect of Erythema
Increased supply of nutrients to the skin
What are some general effects of infrared?
Dilation of pores
Increased absorption of product
What are the characteristics of Tanning?
Skin pigmentation darkens.
Physiological effects of tanning
UV rays stimulate melanocytes to produce melanin.
What are some characteristics of desquamation?
Shedding of epithelial tissues
Physiological effect of desquamation
Removal of dead skin cells improving appearance of skin.
What are som characteristics of perspiration?
Excretion of water through the skin
Physiological effects of perspiration
Evaporates and cools skin
Remove waste from skin
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
Wavelengths - radio waves?
Greater than 0.3m
Wavelengths - microwaves?
Wavelengths - infrared?
700nanometres - 1mm
Wavelengths - visible?
400nm - 700nm
Wavelengths - Ultraviolet?
Examples of radio waves
Mobiles, radars and radios.
Examples of microwaves
Bluetooth, gps and microwave.
Examples of infrared
Produce heat and warm skin
Examples of visible
Detected by the human eye