waecE-LEARNING
Health Science Paper 2, Nov/Dec. 2012  
Questions: 1 2 3 4 5 6 7 8 Main
General Comments
Strength
Weakness/Remedies







































Question 2

  1.   The diagram below is an illustration of a joint in humans.  Study it and use it to answer
      questions 2(a) to 2(c)

 

  1.  

     

     

     


    1. (i)   Mention  the type of joint shown in the diagram                                [ 1 mark ]

    (ii)   Name the parts labelled I to IV.                                                         [ 2 marks ]
    (iii)  State one function each of the parts
           labelled II, III and IV.                                                                        [ 3 marks ]

    1.    Mention two injuries which could affect the joint

       Illustrated in the diagram.                                                                     [ 2 marks ]

    1.   (i)  Mention one location in the human body                                                     

           where the joint illustrated in the diagram above
           can be found.                                                                                    [ 3 marks ]

    1. What name is given to the disease that causes

    Pains and swelling at the joint illustrated
     In the diagram?                                                                               [ 1 mark ]


           

 

_____________________________________________________________________________________________________

observation

This question was  attempted by many candidates and their performance was good.  In part (a)(i) candidates correctly mentioned the type of joint shown in the diagram, in (a)(ii) candidates also named the parts labelled I to IV correctly but in (a)(iii) candidates could  not correctly state functions of  each of the parts labelled II,III and IV.
In part (b) candidates correctly mentioned injuries which could affect the joint illustrated in the diagrams.  In part (c)(i) candidates correctly mentioned the  location in the human body where the joint illustrated can be found and in (c)(ii) candidates also named the diseases that cause pains and swellings at the joint illustrated.

The expected answers are as follows:
2 (a)(i)   Type of joint in the above diagram
           -    hinge joint                                                                             
    (ii)    Naming the parts labelled
          I         -         synovial membrane
          II        -         synovial fluid
          III       -         ligament
          IV       -         cartilage/hyaline cartilage/articular cartilage
 
 (iii)     Function of the parts labelled II,III and IV
           Function of II

  •  It serves as a lubricant during movement
  • It nourishes the structures within the joint cavity

 
           Function of III

  •  It keeps bones together

 
           Function  of IV

  •   It prevents the surfaces of the bones from being worn-out whenever they rub against each other/reduces friction

(b)   Injuries which could affect the  illustrated diagram
          -         dislocation
           -          sprain
(c)(i)     Location in the human body where the joint illustrated above could be   found
          -         the knee/elbow
 
   (ii)   Disease that causes pains and swelling at the illustrated joint

    • Arthritis of the joint/rheumatism

 

   


                                                                                              
                               

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