Skin Functions and Layers Quiz

Which of the following is the correct order for the layers of skin from superficial to deep?

• hypodermis, epidermis, dermis

• epidermis, dermis, hypodermis

• epidermis, hypodermis, dermis

• dermis, epidermis, hypodermis

Which of the following epidermal layers is only found in thick skin like that on the palms of your hands?

• stratum lucidum

• stratum granulosum

• stratum corneum

• stratum basale

Your fingerprints are caused by

• a build-up of melanin.

• layers of keratin filaments.

• a layer of dermal papillae.

• blood vessels near your skin.

The pigment produced by your skin that protects you from UV radiation is

• melanin.

• keratin.

• Vitamin D.

• collagen.

The arrangement of ________ in the dermis forms lines of cleavage.

• collagen.

• melanin.

• keratin.

• elastin.

• Vitamin D.

The dermis is composed of 2 layers: the ___________ layer, which is made of loose connective tissue and the ___________ layer, which is made of densely-packed fibrous tissue.

• cleavage

• papillary

• subcutaneous

• reticular

• epidermal

The glands that secrete their products near hairs are known as

• apocrine glands.

• papillary glands.

• sebaceous glands.

• subcutaneous glands.

Which of the following is NOT visible when looking at your fingernail?

• nail matrix

• lunula

• proximal nail fold

• nail body

If this layer of the skin is unable to regenerate after a burn, a skin graft will be required:

• epidermis

• hypodermis

• dermis

• melanocytes

Which structure dilates to regulate temperature?

• hypodermis

• blood vessels

• sebaceous glands

• dermal papillae