Structure of the Hair

The hair, skin, nails, and glands are known collectively as the:

• epidermis
• dermal papilla 
• integument
• trichology

The five main structures of the hair root include all of the following except the:

• hair follicle
• dermal papilla
• arrector pili muscle
• epidermis

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

• bulb
• follicle
• shaft
• dermal

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

• cuticle layer 
• hair bulb
• dermal papilla
• arrector pili

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

• hair follicle
• hair strand
• dermal papilla
• dermal cuticle

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

• hair follicle
• hair strand
• dermal papilla
• dermal cuticle

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

• hair follicle
• hair strand
• dermal papilla
• dermal cuticle

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

• cuticle layer 
• hair bulb
• dermal papilla
• arrector pili

The substance secreted by the sebaceous glands is called:

•  sebum
• sudoriferous
• sulfur
• lymph

The tiny, involuntary muscle fiber in the skin inserted in the base of the hair follicle is the:

• dermal papilla
• angled bulb
• arrector pili
• inner follicle