Midterm (Ms. Sandra's Questions) Flashcards
Current that does not have constant voltage or polarity is:
Alternating
The flow of electrons in the same direction even and constant is:
Direct
Short wave is more successful on curly or kinky hair when the hair is in the:
Early anagen stage
Always expect to insert deeper when entering a follicle containing a:
Terminal gray hair
To effectively treat patients with dark skin with an Nd:YAG laser, you need:
Longer wavelengths and longer pulse widths
There is a higher risk of collateral damage to the skin with a:
Shorter wavelength
The first person to describe the use of Galvanic electrolysis for the treatment of unwanted hair is:
Dr. Charles Michel in 1875
Which of the glands throw off waste and regulate body temperature?
Sudoriferous glands
What do Langerhan cells act as?
macrophages
Indifferent electrode rash is contributed to by:
Hydrochloric acid and chlorine gas
The phenomenon that allows electrologists to perform thermolysis and or use a grounding wire or indifferent electrode is:
Capacitive return
Which area of the body is more susceptible to pitted scarring?
Face
An important factor in the use of the Blend modality is:
Correctly proportioned relationship between currents
When preparing for treatment it is safer to select a needle that is what?
Too long
Where does the vellus hair begin its growth?
Lobe of the sebaceous gland
When is steam produced during electrolysis?
High frequency blowout
Automatic timing is what?
More accurate than manual timing
If all variables are kept constant during thermolysis except timing, what happens to the current density around the probe as timing is increased?
Current density remains the same
What is a purpura?
laser bruise
What are the four appendages of the skin?
Hair, nails, sebaceous gland, sudoriferous gland
What makes up the Pilosebaceous unit? (5 beetles, 2 drummers)
Hair Root
Hair Bulb
Hair Shaft
Hair Papilla
Hair Follicle
Sebaceous Gland
Arrector pili muscle
Laser settings for light, fine hair are:
higher fluence with shorter pulse duration
What skin layer is not present where there are hair follicles?
Stratum lucidum
Who invented the multi-needle machine?
Dr. Paul Kree
What shape follicle does a kinky hair come from?
Oval
What means is galvanic current?
chemical
A honey-colored crust forming at the follicle mouth indicates what?
Natural healing
What is a tough outer covering to resist heat, cold, and disinfectant?
spore
The retinal hazard region is laser light:
In the visible and near infrared spectrum between 400-1400nm
All are examples of conductors except:
a) Distilled water
b) Copper
c) Zinc
d) Brass
Distilled water (tap water is though)
An ampere measures all except:
a) Current flow
b) Intensity
c) Excess electrons
d) Strength
Excess electrons
High frequency current has no what?
Polarity
A volt is all except:
a) Electromotive force
b) Electrical pressure
c) Resistance
d) Difference between potentials
Resistance
Galvanic electrolysis is considered to be:
Bi-terminal
The anode is used at what pole?
Positive
The Blend method is also called:
Chemical electrocoagulation
The Blend method is accredited to:
Arthur Hinkel and Henri St. Pierre
The critical zone relating to Galvanic electrolysis is best defined as:
The distance away from the probe beyond which lye is no longer produced
In an electrologist increases the intensity of her Galvanic device from 0.1ma to 0.5ma leaving the timing the same, the amount of lye will do what?
Increase by 5x
The possibility of tattooing occurs if the probe is connected to the:
Positive electrode
When viewing a tweezing case, most of the hairs will be in what stage?
Anagen
Most hair on the body grows at:
45 degree angle
A remnant of a small anagen hair which was left unepilated is known as a:
Tombstone
Hairs with flat shafts come from what kind of follicles?
Curved
What gland of the endocrine system is considered the “Master” gland?
Pituitary gland
What are depressed pitted scars referred to as?
Atrophic scars
What is a hypertrophic lesion?
Keloid
What does MSS stand for?
Musculoskeletal symptom
Name 3 types of crust:
Pus, blood, eschar
Where does the strength of the Dermis come from?
Reticular layer
Name the layer of hair that is the significant part of the hair that gives its strength and elasticity:
Cortex
