What term refers to the scientific study of hair and its diseases and care?

• a. Trichology
• b. Cosmetology
• c. Selenology
• d. Cartology

The Greek word trichos means

• a. skin
• b. fingernails
• c. glands
• d. hair

The hair, skin, nails, and glands are part of the system.

• a. epidermal
• b. integumentary
• c. endocrine
• d. lymphatic

What part of the hair is located below the surface of the epidermis?

• a. Hair shaft
• b. Hair root
• c. Hair cuticle
• d. Hair medulla

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

• a. bulb
• b. follicle
• c. shaft
• d. dermal

The thickened, club-like structure that forms the lower part of the hair root is the

• a. cuticle layer
• b. hair bulb
• c. dermal papilla
• d. arrector pili

A small, cone-shaped area located at the base of the hair follicle that fits into the hair bulb is the

• a. hair follicle
• b. hair strand
• c. dermal papilla
• d. dermal cuticle

What structures contain the blood and nerve supply that provide the nutrients needed fbr hair growth?

• a. Sebaceous glands
• b. Dermal papillae
• c. Hair bulbs
• d. Furuncles

The small, involuntary muscle fiber in the base of the hair follicle is the

• a. inner follicle
• b. angled bulb
• c. arrector pili
• d. dermal papilla

The substance secreted by the sebaceous glands is called

• a. sebum
• b. sulfur
• c. sudoriferous
• d. lymph