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2 marksCoordination and Control

CSEC Human and Social Biology · May/June 2012 · Paper 2 · Question 3(d)(ii)

Robert is fascinated by involuntary blinking.

Give ONE example of a voluntary action and ONE example of an involuntary action other than blinking.

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Other parts of this question

  1. 3(a)Name the TWO subdivisions of the nervous system.[2 marks]
  2. 3(b)(i)State the names of the parts labelled X and Y in Figure 5.[2 marks]
  3. 3(b)(ii)State ONE function of EACH of the parts labelled X and Y.[2 marks]
  4. 3(c)(i)Suggest the part of the brain that may be responsible for the intermittent fever.[1 mark]
  5. 3(c)(ii)Suggest the part of the brain that may be responsible for the irregular heartbeat and breathing.[1 mark]
  6. 3(d)(i)Explain the difference between voluntary and involuntary actions.[2 marks]
  7. 3(e)(i)State the term used for the chemicals released from vesicles at a synapse.[1 mark]
  8. 3(e)(ii)Explain the role of the chemicals released at a synapse.[2 marks]

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