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WAEC Biology 2017 Question 9

Question 9

Support and Movement

The diagram below illustrates a part of the human skeleton. Which of the labelled parts articulates with the head of the trochlea to form a hinge joint?

Diagram for this question
  1. A.I
  2. B.II
  3. C.III
  4. D.IV
Show the answer and explanation

Answer: B (II)

Explanation

The notch at the elbow end of the ulna (part II) fits round the trochlea of the humerus, forming the hinge joint of the elbow.