Figure 3 shows the muscular system of a gymnast - Edexcel - GCSE Physical Education - Question 2 - 2019 - Paper 1
Question 2
Figure 3 shows the muscular system of a gymnast.
(a) Examine the antagonistic muscle action taking place at the elbow in Figure 3 that allows the gymnast to achieve... show full transcript
Worked Solution & Example Answer:Figure 3 shows the muscular system of a gymnast - Edexcel - GCSE Physical Education - Question 2 - 2019 - Paper 1
Step 1
Examine the antagonistic muscle action taking place at the elbow in Figure 3 that allows the gymnast to achieve this position.
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Answer
In this position, the gymnast needs to extend her elbow which requires the biceps to contract while the triceps act as the antagonist.
The biceps brachii contracts to allow the extension of the arm, leading to the desired position.
When the biceps contracts, the triceps relax. This antagonistic relationship allows for controlled movement, ensuring that the gymnast can maintain stability while in this position.
Step 2
The gymnast in Figure 3 is supporting her body weight using the bones in the wrist.
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Answer
The bones in the wrist are classified as short bones. Short bones provide stability and support while allowing for a range of motion.
Step 3
Explain, using examples, two functions of the skeletal system that help the gymnast move her lower body into this position.
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