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Medicine LibreTexts

6.21: Skeleton Worksheet Answers

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  • 1. Add the labels to the diagrams of the long bone below.

    Long bone labelled.JPG

    LS long bone labelled.JPG

    2. Add the labels to the diagram of the vertebra shown below:

    Vertebra labelled.JPG

    3. Add the labels to the diagram of the dog skeleton shown below:

    Dog skeleton labelled.JPG

    4. Cross out the statements that are NOT correct.

    The skeleton:
    • supports and protects the organs of the body
    • provides a means of locomotion
    • grows throughout the life of the animal
    • helps keep the level of calcium ions in the body constant
    • develops from the cartilage laid down in the fetus

    5. True or False. If false indicate the correct answer.

    • The elbow joint is a synovial joint T
    • The patella is a compact bone F It is a sesamoid bone
    • The joints in the skull are fixed (immovable joints) T
    • Unguligrade locomotion is walking on the toenails or hoofs T
    • Flexion means increasing the angle between two bones F It is decreasing the angle of the joint.
    • The joint between the axis and the atlas is a hinge joint. F It is a pivot joint.
    • The articular surface of a joint is covered with spongy bone F It is covered in compact bone which itself has a covering of cartilage.
    • Ligaments join two bones together at a joint. T
    • Plantigrade locomotion is walking on the digits only. F It is walking on the "palms" of the fore or hindlimb.
    • The hip joint is a hinge joint. F It is ball and socket joint.

    Contributors and Attributions

    • Ruth Lawson (Otago Polytechnic; Dunedin, New Zealand)