Chapter 11 Properties Of The Hair And Scalp

The scientific study of hair, its diseases, and care is called _____.

• Dermatology

• Trichology

• Biology

• Cosmetology

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

• Dermis and Epidermis

• Hair Shaft and Hair Follicle

• Hair Root and Hair Shaft

• Hair Root and Hair Follicle

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

• Hair Follicle

• Hair Shaft

• Hair Bulb

• Scalp

Hair follicles are not found on the _____.

• Forehead Area

• Backs of the Hands

• Soles of the Feet

• Back of the Neck

The _____ is the small, involuntary muscles in the base of the hair follicle.

• Medulla

• Arrector Pili Muscle

• Tinea

• Dermal Papilla

The fatty or oily substance secreted by the sebaceous glands is _____.

• Sweat

• Lymph

• Catagen

• Sebum

For chemicals to penetrate a healthy cuticle hair layer, they must have _____.

• No pH

• A Neutral pH

• An Alkaline pH

• An Acidic pH

The medulla is composed of _____ cells.

• Rod-Shaped

• Round

• Spiral- Shaped

• Rectangular

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

• Anagen

• Catagen

• Resting

• Telogen

The major elements that make up human hair are carbon, oxygen, hydrogen, _____.

• Lead, and Zinc

• Keratin, and Selenium

• Boron, and Calcium

• Nitrogen, and Sulfur