Permanent Waving wrapping and chemicals

The cortex layer of the hair structure is responsible for the hair's length and texture?

• true
• false

The term pH is an abbreviation used for potential of hydrogen?

• true
• false

The single flat wrap uses one end paper folded in half over the hair ends like an envelope.

• true
• false

On-base placement minimizes stress and tension on the hair.

• true
• false

Alkaline waves are also known as cold waves.

• true
• false

Rods that are equal in diameter along their entire length or curling area are?

• convex rods
• conventional rods
• spiral rods
• straight rods

The wrapping technique that provides the most control over the hair ends is the?

• single flat wrap
• double flat wrap
• placed wrap
• bookend wrap

In permanent waving, panels of hair are divided into smaller subsections called?

• rod sections
• outer sections
• placemnets
• base sections

Caution should be used with on-base rod placement to avoid additional?

• sectioning of hair
• increased volume
• curl patterns
• stress and tension on hair

The two methods of wrapping the hair around a perm rod are?

• flat and spiral
• spiral and perpendicular
• croquignole and spiral
• croquignoe and even