Quiz: Epidermis & Dermis

Prickly layer; contains thick bundles of intermediate filaments of pre-keratin

• stratum lucidum

• stratum granulosum

• stratum basale

• stratum spinosum

• stratum corneum

deepest layer; attached to the underlying dermis:

• stratum spinosum

• stratum basale

• stratum lucidum

• stratum granulosum

• stratum corneum

the outermost layer; 20-30 cell layers thick; cells are dead skin protection

• stratum spinosum

• stratum granulosum

• stratum basale

• stratum lucidum

• stratum corneum

waterproofing layer; slows water loss

• stratum basale

• stratum lucidum

• stratum granulosum

• stratum spinosum

• stratum corneum

thin and transparent, clear layer; found only in thick skin

• stratum basale

• stratum spinosum

• stratum granulosum

• stratum lucidum

• stratum corneum

These cells give the epidermis its protective properties

• keratinocytes

• melanocytes

• Langerhans' cells

• Merkel Cells

These cells synthesize skin pigment to give skin and hair its color; found in the deepest layer of the epidermis:

• keratinocytes

• melanocytes

• Langerhans' cells

• Merkel cells

macrophages that help activate our immune system

• melanocytes

• keratinocytes

• Langerhans' cells

• Merkel cells

function as sensory receptors for touch

• keratinocytes

• melanocytes

• Langerhans' cells

• Merkel cells

Which layer of the dermis contains pain and touch receptors and epidermal ridges?

• papillary

• reticular

• collagen

• adipose