Analyse the nervous system's role in producing both fine and gross motor movements during a gymnastics floor routine. (6 marks)
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Sample Answer
Fine motor movements:
- Require precise control of small muscle groups
- Involve high numbers of motor neurons per muscle fibre
- Utilise specific areas of the motor cortex for detailed movement control
- Need constant sensory feedback for accuracy
Gross motor movements:
- Involve large muscle groups working together
- Require coordination between multiple neural pathways
- Use fewer motor neurons per muscle fibre
- Rely on balance centres in the cerebellum
The nervous system must:
- Integrate both types of movement seamlessly
- Coordinate timing through the cerebellum
- Maintain postural control while executing movements
- Process continuous feedback to adjust movements
Show Worked Solution
Sample Answer
Fine motor movements:
- Require precise control of small muscle groups
- Involve high numbers of motor neurons per muscle fibre
- Utilise specific areas of the motor cortex for detailed movement control
- Need constant sensory feedback for accuracy
Gross motor movements:
- Involve large muscle groups working together
- Require coordination between multiple neural pathways
- Use fewer motor neurons per muscle fibre
- Rely on balance centres in the cerebellum
The nervous system must:
- Integrate both types of movement seamlessly
- Coordinate timing through the cerebellum
- Maintain postural control while executing movements
- Process continuous feedback to adjust movements