7th science ch. 9 lesson 6

Skin helps eliminate wastes and produce vitamin D.

• true

• false

The _____ is the outer layer of the skin, which helps protect

your skin.

• dermis

• epidermis

Together an outer layer and an inner layer perform all the

skin’s functions.

• true

• false

The ______ is the inner layer of the skin, which includes

nerves, blood vessels, sweat glands, hairs, and oil glands.

• dermis

• epidermis

How does the skin help regulate body temperature?

• by allowing body temperature to change when the weather becomes warmer or

  cooler

• by removing wastes from the body

• by blocking information about the environment

• by enabling excess heat to escape from the body

________ in the skin gather information from the environment about

pressure, temperature, and pain.

• nerves

• muscles

• bones

• hairs

Where is melanin, a pigment that colors the skin, produced?

• cells deep in the epidermis

• cells in the dermis

Eating a balanced diet provides the energy and raw materials needed for the growth and replacement of ____________ .

• skin cells

• hair cells

• tissue cells

______ produced in glands around the follicles keeps the surface of the

skin moist and the hairs flexible.

• oil

• water

• hormones

What are the functions of the skin?

• protecting the body

• maintaining temperature

• eliminating waste

• producing vitamin D

• gathering information