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Boss quiz

10 questions on the whole topic. You get one try at each.

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  1. Which of these is a job of the skeleton?

    • Digesting food
    • Carrying messages
    • Pumping blood
    • Supporting the body

  2. Which part of the skeleton protects the brain?

    • The femur
    • The pelvis
    • The skull
    • The ribs

  3. Where are new blood cells made?

    • In ligaments
    • In cartilage
    • In tendons
    • In bone marrow

  4. Where is the femur?

    • In the thigh
    • In the upper arm
    • In the chest
    • In the head

  5. Which of these is a hinge joint?

    • The shoulder
    • The hip
    • The knee

  6. What does cartilage do in a joint?

    • It makes new blood cells
    • It pulls the bones together
    • It reduces friction between the bones
    • It joins muscle to bone

  7. What joins a muscle to a bone?

    • Cartilage
    • A ligament
    • A tendon
    • Bone marrow

  8. What happens to a muscle when it contracts?

    • It pushes the bone away
    • It gets longer and thinner
    • It stops pulling
    • It gets shorter and fatter

  9. Which muscle contracts to straighten the arm?

    • The biceps
    • The muscle in the thigh
    • The triceps

  10. What is the force of a muscle measured in?

    • Centimetres (cm)
    • Newtons (N)
    • Kilograms (kg)
    • Joules (J)
Answers
  1. Supporting the body. The skeleton supports the body, protects organs, allows movement and makes blood cells.
  2. The skull. The skull is a hard case around the brain.
  3. In bone marrow. Bone marrow is a soft tissue inside some bones.
  4. In the thigh. The femur is the thigh bone. It is the longest bone in the body.
  5. The knee. The knee bends and straightens, like a door on its hinge. The shoulder and the hip are ball and socket joints.
  6. It reduces friction between the bones. Cartilage is smooth, so the ends of the bones slide over each other easily.
  7. A tendon. Tendons join muscles to bones. Ligaments join bones to bones.
  8. It gets shorter and fatter. A contracting muscle gets shorter and pulls on the bone.
  9. The triceps. The triceps contracts and the biceps relaxes.
  10. Newtons (N). The newton is the unit of force.