Anatomy of the Hair and Follicle

Which layer contains accessory structures such as sweat glands, sebaceous glands, and hair follicles?

• epidermis
• dermis
• hypodermis
• hyperdermis

The central core of the hair is called the...?

• Medulla
• Cuticle
• Cortex
• Shaft

Name the outer layer of the hair

• Cortex

• Medulla

• Cuticle

• Root Sheath

A

• Cuticle

• Hair Follicle

• Cortex

• Medulla

Tags

NGSS.MS-LS1-2

B

• Cuticle

• Hair Follicle

• medulla

• Cortex

Tags

NGSS.MS-LS1-2

Arrector Pili

• Outside covering of hair

• Deepest layer of hair containing large cells and air spaces

• Muscle attached to the hair follicle.

• Lowest part of a hair strand; the thickened, club-shaped structure that forms the lower part of the hair root.

Hair Shaft

• Part of the hair that is visible on the scalp or skin.

• Part of hair that is enclosed in the hair follicle

• "Bag" that encloses the root of hair

• Nipple-like structure of connective tissue containing capillaries and nerves

Hair Root

• Part of the hair that is visible on the scalp or skin.

• Part of hair that is enclosed in the hair follicle

• "Bag" that encloses the root of hair

• Nipple-like structure of connective tissue containing capillaries and nerves

Hair Follicle

• Part of the hair that is visible on the scalp or skin.

• Part of hair that is enclosed in the hair follicle

• "Bag" that encloses the root of hair

• Nipple-like structure of connective tissue containing capillaries and nerves

Hair Papilla

• Area of the hair bulb known as the growth zone, lies next to melanocytes.

• Deepest layer of the follicle that covers the hair root directly composed of epithelial tissue.

• The superficial layer of the follicle that covers the hair root composed of dermal connective tissue.

• Nipple-like structure of connective tissue containing capillaries and nerves