Muscles, skeleton and movement Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. Which structure joins bone to bone?
- A. Ligament
- B. Tendon
- C. Sarcolemma
- D. Myofibril
2. The knee is straightened. Which statement is correct?
- A. The hamstring contracts and the quadriceps relaxes
- B. The quadriceps contracts and the hamstring relaxes
- C. Both contract
- D. Both relax
3. Which feature of a muscle fibre allows an action potential to reach the myofibrils deep inside it?
- A. Z lines
- B. Myoglobin
- C. T-tubules
- D. Phosphocreatine
4. Which feature is found in fast twitch but not slow twitch fibres?
- A. High myoglobin content
- B. Many mitochondria
- C. Dense capillary network
- D. Large phosphocreatine stores
5. Why are slow twitch fibres red?
- A. They contain myoglobin
- B. They have many T-tubules
- C. They contain thick myosin
- D. They contain lactate