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Question

What happens if the joint that helps in exercising biceps and triceps are replaced with the joints in the cranium?

  1. Movement around elbow will not be possible.
  2. The movement around elbow remains the same.
  3. The forearm can move around 360 degrees.
  4. The forearm can move back and forth.


Solution

The correct option is A Movement around elbow will not be possible.
Hinge joint in the elbow helps us to bend our arms.
Elbow joints can move 180 degrees making back and forth movement of the arm possible.
Bones in the skull are joined with fixed joints. Fixed joints are fibrous joints that are immovable.
If elbow joints are replaced with skull joints, it makes the elbow movement impossible. 

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