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3 marksThe Skeletal System

CSEC Human and Social Biology · January 2009 · Paper 2 · Question 12(b)

In a degenerative joint condition affecting older individuals, articular cartilage in the knee joint wears away.

Predict the functional consequences and symptoms resulting from the loss of articular cartilage in the knee.

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Other parts of this question

  1. 12(a)(i)State two functions of bones and one function of cartilage in the human body.[3 marks]
  2. 12(a)(ii)Name the type of synovial joint present at (a) the shoulder and (b) the knee.[2 marks]
  3. 12(c)Explain, in terms of muscular contraction, tendons, and antagonistic bone action, why this biceps injury prevents bending of the elbow.[9 marks]
  4. 12(d)Explain why a fracture to the shoulder bone would restrict or impair movement in the lower arm.[3 marks]

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