Caution should be used with on-base rod placement to avoid additional___.

___ refers to the position of the rod in relation to its base section and is determined by the angle at which the hair is wrapped.

All perm wraps begin by sectioning the hair into ___.

___, often found in home haircoloring products, leave a coating on the hair that may cause uneven curls, severe discoloration, or hair breakage.

In a ___, the hair is wrapped at an angle other than perpendicular to the length of the rod which causes the hair to spiral along the length of the rod.

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

Hair that has been treated with a hydroxide relaxer is unfit for ___ and will not hold a curl.

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

The angle at which a permanent wave rod is positioned on the head is referred to as ___.

What is a very effective technique for blending between perm rods with opposite base directions using zigzag partings to divide base areas?