The two parts of a mature strand of human hair are the ______________.

The tube-like depression or pocket in the skin or scalp that contains the hair root is the _______________.

Hair follicles are not found on the ___________.

During the _____________ phase, new hair is produced because new cells are actively manufactured in the hair follicle.

The medulla is composed of ___________ cells.

The major elements that makeup human hair are carbon, oxygen, hydrogen, ______________.

The strong, chemical bonds that join amino acids are called ______________.

Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones?

To help minimize tangles in extremely curly hair when shampooing, you should use _______________.

The measurement of the number of individual hair strands on one square inch of the scalp is _____________.

Wet hair with normal elasticity will stretch up to ______________ of its original length and return to that length without breaking.

Which of the five main structures of the hair root contain the blood and nerve supply that provides the nutrients needed for hair growth?

By age 35, almost ___________ percent of both men and women show some degree of hair loss.

When living cells of hair form and begin their journey upward through the hair follicle, they mature in a process called _____________.

The oil glands in the skin that are connected to the hair follicles are the _______________ glands.

A ___________ bond is a weak, physical, cross-link side bond easily broken by water or heat.

A condition of abnormal growth of terminal hair in areas of the body that normally grow only vellus hair is _______________.

Tinea is characterized by ____________, scales, and sometimes, painful circular lesions.

A carbuncle is similar to a furuncle but is __________.