Skeletal System Worksheet - Grade 12
A Grade 12 science worksheet covering the human skeletal system, including bone types, functions, and disorders.
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Skeletal System Worksheet
Name:
Date:
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Read each question carefully and provide your best answer. For multiple choice, circle the correct option. For fill-in-the-blanks, write your answer on the line provided. For short answer, use the space below the question.
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 axial skeleton includes which of the following bones?
Femur
Ribs
Humerus
Tibia
3. The process of bone formation is called .
4. Immovable joints, such as those found in the skull, are called .
5. The primary mineral stored in bones is .
6. Briefly explain the difference between compact bone and spongy bone.
7. Label the following bones on the diagram below:
A. Skull
B. Rib Cage
C. Vertebral Column
D. Femur
E. Humerus
8. Red bone marrow is primarily responsible for fat storage.
True
False
9. Osteoporosis is a condition characterized by increased bone density.
True
False
Match each term with its correct definition.
10. Osteoblast
a. Bone-destroying cell
11. Osteoclast
b. Bone-forming cell
12. Osteocyte
c. Mature bone cell
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