Muscular System Worksheet
A Grade 10 Science worksheet covering the structure, function, and types of muscles in the human body.
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Muscular System Worksheet
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Read each question carefully and answer to the best of your ability. Use the provided image to help answer questions where indicated.
Observe the diagram of the human muscular system below:
1. Which type of muscle tissue is responsible for voluntary movements?
Cardiac muscle
Smooth muscle
Skeletal muscle
Involuntary muscle
2. Which of the following is NOT a primary function of the muscular system?
Producing movement
Maintaining posture
Generating heat
Synthesizing hormones
3. The contractile proteins in muscle fibers are and .
4. Tendons connect to .
5. Cardiac muscle is found in the walls of the heart and is under involuntary control.
True
False
6. Muscle fatigue is primarily caused by the accumulation of lactic acid.
True
False
7. Briefly explain the sliding filament theory of muscle contraction.
8. Differentiate between an isotonic and an isometric muscle contraction, providing an example for each.
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