1. a blender
   a dental drill
2. an electric razor

The machine that injects ink into a person's skin looks and sounds a lot like a dental drill.

1. an artist
   a scientist
2. a technician

Tattoo artists must possess artistic talent and skill.

1. epidermis, the outer layer
   dermis, the second layer
2. hypodermis, the inner layer

The ink is actually added to the cells of the dermis, which are far more stable than the cells of the epidermis.

1. ink
   needle
2. needle bar

Reusable materials, such as the needle bar, should be sterilized before every use.

1. the client's skin
   the work area
2. both

The entire work area, the client's skin and anything else that comes into contact with the client or the needle should be disinfected or sterilized.

1. templates
   flash
2. models

These existing designs are usually referred to as "flash." A client can choose from flash or request an a customized design.

1. outlining
   shading
2. freestyling

Also known as black work, a tattoo artist first creates an outline using a single-tipped needle and thin ink.

1. valleys
   holidays
2. breakdowns

The area where color has lifted out during healing or the artist missed a section of skin is called a holiday.

1. bleeding
   puss forming
2. excessive thirst

Some bleeding always occurs during tattooing, but most stops within a few minutes.

1. infection
   transmission of disease
2. both

Since tattoos involve needles and blood, they carry several health risks -- including infection and transmission of disease. Proper sterilization procedures greatly reduce these risks.