Integumentary System

What is the composition of hair and nails?

• Hard keratin
• Collagen
• Soft keratin
• Elastin

What is the term for the region within the hair follicle where hair cells divide?

• Cuticle
• Shaft
• Bulb
• Follicle

What is the term for the part of the hair that sticks out of the skin?

• Shaft
• Bulb
• Cuticle
• Follicle

What are hair cells filled with?

• Hemoglobin and melanocytes
• Keratin and pigments
• Melanin and sebum
• Collagen and elastin

What are the four basic parts of nails?

• Shaft, pigments, keratin, muscles
• Lunula, melanin, sebum, hemoglobin
• Cuticle, follicle, bulb, matrix
• Free edge, body, root, nail bed

What is the term for the outermost layer that protects the hair shaft?

• Shaft
• Cuticle
• Bulb
• Follicle

What produces heavily keratinized cells that become the nail body?

• Follicle
• Bulb
• Nail matrix
• Cuticle