Properties of the Hair and Scalp Quiz

A mature strand of human hair is divided into two principal parts known as the ____.

• follicle and cuticle

• hair root and follicle

• hair shaft and follicle

• hair root and hair shaft

What structure in the skin or scalp encases a hair root?

• Hair follicle

• Hair bulb

• Dermal papilla

• Arrector pili

What is the lowest part of the hair strand?

• Hair follicle

• Hair Bulb

• Dermal papilla

• Arrector pili

What structure is described as a small, cone-shaped elevation located at the bottom of the hair follicle?

• lower follicle

• hair bulb

• dermal papilla

• arrector pili

What small involuntary muscle is attached to the underside of a hair follicle?

• arrector pili

• hair bulb

• dermal papilla

• Hair strand

Oil glands of the skin, connected to the hair follicles, are known as_______.

• Sudoriferous glands

• endocrine glands

• lymph glands

• sebaceous glands

Of the 20 amino acids that make up hair, a person must obtain____of the essential amino acids from daily diet.

• seven

• nine

• eleven

• thirteen

The three main layers of the hair shaft are the_____.

• outer, inner, and central

• cuticle, cortex, and medulla

• cuticle, inner root, and medulla

• cortex, medulla, and dermis

What substance in the cortex gives natural color to the hair?

• Protein

• Melanin

• Sebum

• Tissue

As newly formed cells mature, they fill up with a fibrous____, then move upward, lose their nucleus, and die. This process is called keratinization.

• protein

• melanin

• sebum

• tissue