12/11:Layers of the Skin Quiz

Which layer of the skin is composed of keratinized, stratified squamous epithelium and is the most outer layer of the skin?

• Stratum basale

• Stratum spinosum

• Stratum granulosum

• Stratum corneum

Which layer of the skin is avascular and does not have any blood vessels within it?

• Papillary Layer

• Epidermis

• Dermis

• Hypodermis

Where is thick skin found in the body?

• Arms and legs

• Back and abdomen

• Face and neck

• Palms of the hands and soles of the feet

Which of the following is true about the epidermis layer of skin?

• It may contain 4 layers.

• It may contain 5 layers.

• It is composed of the Reticular layer.

• It is made up of the papillary layer.

Which of the following is true about the stratum lucidum?

• It is found in the in only thick skin.

• It is found in the palms of your hands.

• It is found in the palms of your feet.

• It is found in all parts of skin.

What is the function of the dermal papillae in the skin?

• Production of keratinocytes

• Production of collagen fibers

• Protection from external damage

• Contain Phagocytes that help fight bacteria

Which layer of the skin is made of dense, irregular connective tissue and houses blood vessels, hair follicles, and sweat glands?

• Stratum spinosum

• Hypodermis

• Stratum basale

• Dermis

What is the main function of the hypodermis?

• Protection from UV radiation

• Production of keratin

• Attachment of the epidermis to the dermis

• Storage of fat and insulation

Which type of cells are responsible for manufacturing and storing the protein keratin in the skin?

• Melanocytes

• Keratinocytes

• Langerhans cells

• Fibroblasts

What is the role of keratin in the skin?

• Producing melanin for skin color

• release a water-repelling glycolipid that helps prevent water loss from the body, making the skin relatively waterproof.

• Enhancing skin pigmentation

• Regulating body temperature