BA Ch.10 ER - Properties & Disorders of the Hair & Scalp

Which of the following is the tube-like depression or pocket in the skin or scalp that contains the hair root?

• Arrector pili

• Hair follicle

• Dermal papilla

• Hair bulb

The lower part of the hair bulb is hollow and fits over the:

• Dermal papilla

• Endocrine glands

• Arrector pili

• Sebaceous glands

Which of the following contains the blood and nerve supply that provides the nutrients needed for hair growth?

• Dermal papilla

• Arrector pili

• Cortex

• Medulla

Overactive sebaceous glands that secrete too much sebum can cause what type of scalp condition?

• Scale-like

• Dry

• Oily

• Flakey

Hair follicles are distributed all over the body, with the exception of the palms of the hands and the:

• Fingers

• Top of the feet

• Ears

• Soles of the feet

The outermost layer of the hair is the:

• Cortex

• Follicle

• Cuticle

• Medulla

What percentage of the total weight of the hair comes from the cortex?

• Less than 10 percent

• 90 percent

• 51 percent

• 40 percent

What layer of hair may be absent in very fine and naturally blonde hair?

• Medulla

• Cuticle

• Cortex

• Keratin

A healthy, compact cuticle layer is responsible for the __________ of the hair.

• waviness

• thickness

• color

• shine and silkiness

The cortex's unique __________ provides strength, elasticity, and natural color to the hair.

• pigment

• protein structure

• texture

• chemical composition