To solve this matching problem, we need to look at the shape and movement of each joint diagram and match it with the correct definition provided in the blue boxes.
Here is the step-by-step breakdown:
1.
Top Left Diagram: This shows a rounded head fitting into a cup-like socket. It has arrows showing it can move in many directions (rotation).
*
Match: This is a
Ball and socket joint. The label says "(hip joint)".
2.
Top Right Diagram: This shows two bones connected like a door hinge, allowing movement in only one direction (back and forth).
*
Match: This is a
Hinge joint. The label says "(elbow)".
3.
Middle Left Diagram: This shows a ring of bone rotating around a central pivot point.
*
Match: This is a
Pivot joint. The label says "(between C1 and C2 vertebrae)".
4.
Middle Right Diagram: This shows two bones sliding past each other on flat surfaces.
*
Match: This is a
Plane joint. The label says "(between tarsal bones)".
5.
Bottom Left Diagram: This looks very similar to the middle right one, showing flat surfaces sliding. However, looking at the remaining options, we have "Condyloid" and "Saddle" left. Let's look closer at the bottom right first to be sure.
6.
Bottom Right Diagram: This shows a complex joint where one bone surface is concave-convex and the other is convex-concave, allowing movement back-and-forth and side-to-side but not rotation. This specific shape is characteristic of the thumb base.
*
Match: This is a
Saddle joint. The label says "(between trapezium, carpal bone and 1st metacarpal)".
7.
Re-evaluating Bottom Left: Now that we've identified the others, let's look at the remaining option:
Condyloid joint. A condyloid joint allows movement in two planes (like waving your hand). The diagram for the bottom left actually depicts the wrist area (radius and carpal bones), which fits the description of a condyloid joint better than a simple plane joint, although the drawing style is abstract. By process of elimination and matching the text labels:
* The label
"Condyloid joint (between radius and carpal bones)" matches the
Bottom Left diagram.
Let's double-check the pairings:
*
Ball and socket: Top Left (Hip)
*
Hinge: Top Right (Elbow)
*
Pivot: Middle Left (Neck vertebrae)
*
Plane: Middle Right (Tarsal/ankle bones - sliding)
*
Condyloid: Bottom Left (Wrist)
*
Saddle: Bottom Right (Thumb base)
Final Answer:
-
Top Left: Ball and socket joint (hip joint)
-
Top Right: Hinge joint (elbow)
-
Middle Left: Pivot joint (between C1 and C2 vertebrae)
-
Middle Right: Plane joint (between tarsal bones)
-
Bottom Left: Condyloid joint (between radius and carpal bones)
-
Bottom Right: Saddle joint (between trapezium, carpal bone and 1st metacarpal)
Parent Tip: Review the logic above to help your child master the concept of types of joints worksheet.
