Axial Skeleton Worksheet
A Grade 12 Science worksheet focusing on the components, functions, and unique features of the human axial skeleton.
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Axial Skeleton Worksheet
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Read each question carefully and answer to the best of your knowledge. This worksheet covers topics related to the human axial skeleton.
Refer to the diagram below for questions in this section.
1. Which of the following bones is part of the axial skeleton?
Femur
Scapula
Sternum
Humerus
2. The primary function of the axial skeleton is to:
Facilitate movement of the limbs
Protect internal organs and provide support
Produce blood cells
Store minerals and fats
3. The vertebral column is composed of individual bones called vertebrae.
4. The most superior bone of the vertebral column is the , which articulates with the occipital condyles of the skull.
5. The is a U-shaped bone located in the anterior neck, unique because it does not articulate with any other bone.
6. The sacrum and coccyx are part of the appendicular skeleton.
True
False
7. The thoracic cage protects the heart and lungs.
True
False
8. List the three main components of the axial skeleton.
9. Describe the difference between true ribs, false ribs, and floating ribs.
Match each bone or structure with its correct description.
10. Atlas
a. The breastbone
11. Axis
b. First cervical vertebra; supports the skull
12. Sternum
c. Second cervical vertebra; allows head rotation
13. Mandible
d. The lower jaw bone
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