Quiz on Skin Layers

Which layer of the skin contains dead cells that are water repellent and constantly rub off?

• Epidermis

• Hypodermis

What pigment in the skin protects it and gives it color?

• Melanin

• Chlorophyll

Which layer of the skin contains blood vessels, nerves, and sweat glands?

• Dermis

• Subcutaneous Layer

What is the main function of the fat deposits in the fatty layer of the skin?

What causes differences in skin color?

• Different amounts of sweat

• Different amounts of melanin

• Different amounts of blood vessels

• Different amounts of fat deposits

Why does a person's skin usually get darker in the summer?

• Increased blood flow

• Increased sweat production

• Increased melanin production due to UV rays

• Increased fat deposits

How does the skin provide protection for the body?

• By producing Vitamin D

• By acting as a protective covering against physical and chemical injury

• By absorbing nutrients

• By regulating body temperature

Under what conditions is Vitamin D produced and where?

• In the presence of UV light in a fat-like molecule

• In the presence of sunlight in the liver

• In the presence of UV light in the skin

• In the presence of sunlight in the kidneys

Explain why your body needs vitamin D.

• It helps your body absorb calcium

• It helps your body produce sweat

• It helps your body regulate temperature

• It helps your body produce red blood cells

Put the steps of regulating body temperature in the correct order.

• Blood vessels dilate, blood flow increases, the body releases heat

• Blood flow increases, blood vessels dilate, the body releases heat

• The body releases heat, blood vessels dilate, blood flow increases

• Blood vessels dilate, the body releases heat, blood flow increases