Epidermis Quiz

Which layer of the epidermis contains dead keratinocytes?

• Stratum basale

• Stratum spinosum

• Stratum corneum

• Stratum granulosum

What type of cell is found in the stratum basale?

• Melanocyte

• Langerhans cell

• Dead keratinocyte

• Keratinocyte

Tags

NGSS.HS-LS1-4

Which cell type is responsible for immune response in the epidermis?

• Merkel cell

• Langerhans cell

• Keratinocyte

• Melanocyte

What is the top layer of our skin called?

• Dermis

• Hypodermis

• Epidermis

• Subcutaneous layer

How many layers is the epidermis broken into?

• 3

• 4

• 5

• 6

Tags

NGSS.HS-LS1-4

What percentage of epidermal cells are keratinocytes?

• 50%

• 70%

• 90%

• 100%

What is the primary function of keratin produced by keratinocytes?

• To provide color to the skin

• To help the epidermis protect from abrasions and remain waterproof

• To produce vitamin D

• To regulate body temperature

Where are keratinocytes produced?

• Stratum corneum

• Stratum basale

• Stratum granulosum

• Stratum lucidum

Tags

NGSS.HS-LS1-4

What happens to keratinocytes as they approach the surface of the skin?

• They multiply

• They become thicker

• They flatten and die

• They change color

How often do you have a completely new epidermis?

• Every 10-20 days

• Every 25-45 days

• Every 50-70 days

• Every 80-100 days

Tags

NGSS.HS-LS1-4