4.3 - 2015 June Q3
(a) The diagram shows a human skeleton.
(i) Name the type of joint shown by joint X in the diagram. (1)
(ii) Explain how the structure of joint Y allows it to bring about movement. (4)
(iii) Place one tick (✓) in each row to show whether the structures form part of the axial or appendicular skeleton. (3)
(ii) Explain how the structure of joint Y allows it to bring about movement. (4)
(iii) Place one tick (✓) in each row to show whether the structures form part of the axial or appendicular skeleton. (3)
(b) The passage describes the role of bones and muscles in movement. Use words from the box to complete the passage. You may use each word once, more than once or not at all. (7)
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Bones are moved by ................................. muscles. These muscles are attached to bones by ................................. and they work in ................................. pairs. When one muscle in the pair ................................. the other ................................. and bones are ................................. in a particular direction. Muscle cells contain many ................................. which release energy for movement.