05.05 - Integumentary System: Crash Course

Watch the Crash Course video at the following link.

https://www.youtube.com/watch?v=EN-x-zXXVwQ

Did you watch the video?

• Yes

• No

What is the main function of the skin?

• Synthesizing vitamin D

• Maintaining balance of fluids

• Protecting against infection

• All of the above

Which layer of the skin is responsible for synthesizing melanin?

• Stratum basale

• Stratum corneum

• Stratum granulosum

• Stratum spinosum

What is the role of dendritic cells in the skin?

• Producing keratin

• Regulating body temperature

• Sensing touch

• Protecting against infection

Which layer of the skin contains collagen and elastin fibers?

• Stratum basale

• Subcutis

• Reticular layer

• Papillary layer

What is the outermost layer of the skin called?

• Stratum corneum

• Stratum spinosum

• Stratum lucidum

• Stratum granulosum

Which layer of the skin is responsible for grip and fingerprints?

• Stratum basale

• Subcutis

• Papillary layer

• Reticular layer

What happens to the epidermal cells as they move up through the layers of the skin?

• They slough off

• They die

• All of the above

• They mature

What is the function of the hypodermis?

• All of the above

• Insulation

• Energy storage

• Shock absorption

What is the role of melanin in the skin?

• Regulating body temperature

• Determining skin color

• Protecting against UV radiation

• All of the above