What is the different between unfused and fused tetanus?
NAME: DATE:
ECE 499/595: Biomedical Engineering & Healthcare Electronics – Fall 2020
Skeletal Muscle Physiology
(50 pts)
- Explain the 7 steps inherent of activation of skeletal muscle at the neuromuscular junction shown in the video. (7 pts)
- What is the cross-bridge cycle? (5 pts)
- a) What is a motor unit? (3 pts)
- b) What are the two distinct ways (list and describe) of controlling the force
produced by a muscle (i.e. motor recruitment strategies)? (5 pts)
- c) What is tetanus? (2 pts)
- d) What is the different between unfused and fused tetanus? (3 pts)
- e) Is tetanus characteristic of a temporal or spatial recruitment strategy? (2 pts)
- a) What does the Henneman’s Size Principle refer to? (3 pts)
- b) How can this principle be applied to understand the different motor unit
recruitment strategies used by sprinters versus marathoners in the video?
(3 pts)
- c) Is Henneman’s Size Principle characteristic of a temporal or spatial recruitment strategy? (2 pts)
- How can the neural strategies of muscle activation be measured with instrumentation? Describe how this works. (5 pts)
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