Describe how the central nervous system processes and responds to a stimulus when a volleyball player must quickly adjust to receive a ball that has been deflected off the net. (4 marks)
--- 10 WORK AREA LINES (style=lined) ---
Show Answers Only
Sample Answer
Sensory Processing:
- Visual cortex processes the ball’s changed trajectory after net deflection.
- Parietal lobe interprets spatial relationships between player and ball.
- Cerebellum receives proprioceptive feedback about current body position.
Decision Making:
- Frontal lobe rapidly evaluates options for adjusted positioning.
- Motor cortex plans modified movement pattern for the new ball path.
- Integration occurs between visual and spatial information.
Response Execution:
- Motor cortex sends adjusted signals through spinal cord to muscles.
- Cerebellum coordinates balance during rapid repositioning.
- Continuous sensory feedback allows real-time movement refinements.
- Entire process occurs within milliseconds for successful reception.
Show Worked Solution
Sample Answer
Sensory Processing:
- Visual cortex processes the ball’s changed trajectory after net deflection.
- Parietal lobe interprets spatial relationships between player and ball.
- Cerebellum receives proprioceptive feedback about current body position.
Decision Making:
- Frontal lobe rapidly evaluates options for adjusted positioning.
- Motor cortex plans modified movement pattern for the new ball path.
- Integration occurs between visual and spatial information.
Response Execution:
- Motor cortex sends adjusted signals through spinal cord to muscles.
- Cerebellum coordinates balance during rapid repositioning.
- Continuous sensory feedback allows real-time movement refinements.
- Entire process occurs within milliseconds for successful reception.