Questions to discuss in A & B Pairs!Q: What do you think a joint is?A: A joint is where two bones meet.It can be movable or fixed.Q: Why do you think we have joints?A: If we did not have joints we wouldfind simple tasks like eating verydifficult. Any movement needingbending would be impossible!!!!
Where in our body do we find movable joints?Did youlocatethe jointsin ourbodycorrectly?
Do you think that these joints all work in the same way?We actually have three main types ofmovable joints:1) A hinge joint2) A ball and socket joint3) A gliding joint
Your toes use hinge joints (back-and-forthmovements like hinges on a door). Elbows,knees and fingers also have these types ofjoints. Hinge joints are classified as amovable joint.
The hips and shoulders containball-and-socket jointsIn a ball-and-socket joint, onebone has a rounded end that fitsinto a cuplike cavity on anotherbone. This provides a widerrange of movement. Thus, yourhips and shoulders can swing inalmost any direction.
The joints between the vertebrae arecalled gliding joints, where one partof a bone slides over another bone.
elbows,fingers,kneeshoulder, hipback bone, finger base