Worksheet: The Human Skeleton

In this worksheet, we will practice identifying the functions of the human skeleton.


Pick one way to keep our bones strong and healthy.

  • AEat lots of foods containing calcium.
  • BEat lots of foods containing vitamin C.
  • CEat lots of foods containing sugar.


The skeleton has three main functions (jobs). It gives our bodies shape and protects our organs. Which of these is the third function of the skeleton?

  • AIt helps us move.
  • BIt helps us run fast.
  • CIt maintains our body temperature.


What attaches our muscles to our bones?

  • ATendons
  • BSkin
  • CJoints


This is a human skeleton.

What bone(s) does the label show?

  • ARibs
  • BFemur
  • CHips
  • DKnee

What organ(s) do these bones protect?

  • AThe lungs
  • BThe kidneys
  • CThe brain
  • DThe heart


What is the longest bone in the human body?

  • AThe tibia
  • BThe radius
  • CThe humerus
  • DThe femur


What joint is shown in the X-ray?

X-ray film of shoulder-72 ppi
  • AShoulder
  • BElbow
  • CWrist
  • DKnee


Select the correct bone to complete the label.

Which bone does the label show?

  • AThe ribs
  • BThe hips
  • CThe skull
  • DThe shoulders

Which organ does this bone protect?

  • AThe lungs
  • BThe brain
  • CThe heart
  • DThe liver


This is a human skeleton.

What is the name of the bone that completes the label?

  • AFibula
  • BFemur
  • CKnee
  • DTibia

This bone helps support our body weight. It has another important job. What is it?

  • AIt helps us balance.
  • BIt helps us stand and walk.
  • CIt helps us turn our head.
  • DIt helps us write.


Which joint is shown in the X-ray?

X-ray picture showing knee joints-72 ppi
  • AThe wrist
  • BThe shoulder
  • CThe hip
  • DThe knee


The diagram shows the different types of joints we have in our bodies. Which type of joint is the shoulder?

  • AHinged
  • BBall and socket
  • CImmovable


The diagram shows a human rib cage. Which organ do the ribs protect?

  • AThe brain
  • BThe intestines
  • CThe lungs


The diagram shows X-ray images of an elbow, wrist, knee, and ankle.

These are all places in the body where bones meet.

What name is given to these parts of the skeleton?

  • AOrgans
  • BJoints
  • CMuscles


The long bones in the leg help keep us standing upright and support our body weight.

Use the diagram to help identify these three long leg bones.

  • AThe fibula, tibia, and patella
  • BThe femur, fibula, and patella
  • CThe femur, fibula, and tibia


Which bone protects the brain?

  • AThe cranium
  • BThe calcium
  • CThe cerebellum


We call the parts of the body where two or more bones fit together joints.

What is the function of joints?

  • AThey protect important organs in the body.
  • BThey allow us to move different parts of the body.
  • CThey help maintain the body posture.

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