Musculoskeletal System Review
A Grade 12 science worksheet covering the structure and function of the human musculoskeletal system, including bone types, muscle contractions, and joint classifications.
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Musculoskeletal System Review
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Read each question carefully and provide your answer in the space provided. For multiple-choice questions, circle the letter corresponding to the correct answer.
1. Which of the following is NOT a primary function of the skeletal system?
Support and protection
Mineral storage
Hormone production
Blood cell formation
2. The 'sliding filament theory' describes the mechanism of:
Bone growth
Muscle contraction
Joint lubrication
Nerve impulse transmission
3. The two main proteins involved in muscle contraction are and .
4. The type of bone tissue characterized by a dense matrix and arranged in osteons is called bone.
5. Briefly explain the role of calcium ions in muscle contraction.
6. Ligaments connect bone to bone, while tendons connect muscle to bone.
True
False
7. The axial skeleton includes the skull, vertebral column, and pelvic girdle.
True
False
Match the joint type with its description:
8. Hinge Joint
a. Allows for rotation around an axis (e.g., neck)
9. Ball-and-Socket Joint
b. Allows for movement in one plane (e.g., elbow)
10. Pivot Joint
c. Allows for movement in all planes (e.g., shoulder)
11. Label the indicated bones on the human skeleton diagram below.

A.
B.
C.
D.