Ch.2 Bones, Muscles, & Skin

One function of the skeleton is to

• move food through the digestive system.

• help the body maintain a steady body temperature.

• provide shape and support for the body.

• help control voluntary muscles.

Which type of muscle tires quickly during exercise?

• breathing muscle

• skeletal muscle

• smooth muscle

• cardiac muscle

How does the skin protect the body from disease?

• by supplying water to the body through the pores

• by increasing body temperature when it is cold

• by gathering information about the environment

• by keeping disease-causing microorganisms from entering the body

Much of a newborn baby's skeleton is made of

• hard bone

• soft bone

• cartilage

• ligaments

Washing your skin helps prevent

• skin cancer

• chapping

• sunburn

• acne

The spaces in bones are filled with soft connective tissue called

• marrow

• blood

• water

• cartilage

What kind of motion is possible with a hinge joint?

• rotating

• sliding

• backward or forward

• side to side

How does the skin help regulate body temperature?

• by removing wastes from the body

• by blocking information about the environment

• by enabling excess heat to escape from the body

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

How do pairs of skeletal muscles work together?

• Both muscles contract at the same time

• Both muscles extend at the same time

• While one muscle in the pair contracts, the other returns to its original length

• One muscle in the pair pulls on a bone, while the second muscle pulls on the first muscle

Which type of muscle is found only in the heart?

• voluntary muscle

• cardiac muscle

• smooth muscle

• soft muscle