1. List the 5 major functions of the skeletal system.

A. ProtectionB. StorageC. SupportD. Blood cell productionE. Movement

2. List the 5 major functions of the muscular system.

A. Pump blood through your bodyB. Enable you to breatheC. Hold you uprightD. Allow you to moveE. Move materials inside your body

3. List 4 types of moveable joints and give example(s) of each.

A. Ball and socket- Shoulder and hipB. Hinge- Knee and elbowC. Gliding- Wrist and ankleD. Pivot- Neck

4. You have fewer bones now than as a baby. Why?

•Because as the baby grows it’s cartilage is replaced by bone and they fuse together

5. Explain why cartilage is important in the skeletal system.

• It allows bones to move smoothly across each other

6. Explain the difference between voluntary and involuntary muscles and give an example of each.

•Voluntary- You are able to control its movement. Ex. Biceps and triceps• Involuntary- You are unable to control it’s

movement. Ex. Heart, blood vessels, stomach, etc.

7. Explain how muscle action results in movement of your arm.

•One muscle in the pair is called the flexor (bicep) which bends a joint by pulling on the tendon. The other muscle, the extensor (tricep), straightens the joint.

8. Are bones dead or alive? Explain your answer.

•Bones are alive! They have blood vessels which supply nutrients and nerves which signal pain

9. Explain what red and yellow marrow is.

•Red marrow is the site of platelet and red and white blood cell production. Yellow marrow stores fat

Vocab matching

1. Skeletal System2. Cartilage3. Joints4. Ligaments5. Fixed Joints6. Muscle7. Involuntary Muscles8. Skeletal Muscles

9. Tendon10.Smooth Muscles11.Cardiac Muscles12.Compact Bone13.Spongy Bone14.Muscular System

Spongy Bone

Compact BoneMarrow