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Medicine LibreTexts

6.21: Skeleton Worksheet Answers

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

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