Integumentary System part 1

What is the main function of the skin?

• Synthesizes vitamin D

• Maintains balance of fluids

• Protects against infection

• All of the above

Which layer of the skin contains the most cells called keratinocytes?

• Epidermis

• Dermis

• Subcutis

• None of the above

What is the role of melanocytes in the skin?

• Synthesize melanin

• Produce keratin

• Maintain balance of fluids

• Regulate body temperature

Which layer of the skin is responsible for touch sensation?

• Epidermis

• Dermis

• Subcutis

• None of the above

What is the outermost layer of the epidermis called?

• Stratum corneum

• Stratum granulosum

• Stratum spinosum

• Stratum basale

Which layer of the skin contains collagen and elastin fibers?

• Epidermis

• Dermis

• Subcutis

• None of the above

What is the function of the hypodermis?

• Insulation

• Energy storage

• Shock absorption

• All of the above

What can happen if the dermis is damaged?

• Bleeding

• Pain

• Infection

• All of the above

What is the role of Langerhans cells in the skin?

• Produce melanin

• Regulate body temperature

• Ingest unwanted invaders

• Produce keratin

Tags

NGSS.MS-LS1-2

What can UV radiation from the sun do to the skin?

• Damage elastic fibers

• Alter skin cells' DNA

• Depress immune system

• All of the above