Multiple Choice
Extension is the reverse of flexion.
8. Joints
Joint Movements
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Which of the following movements is an example of circumduction movement?
A
lateral bending of the trunk away from the body midline
B
a pitcher winding up to throw the ball
C
pointing the toes
D
raising the arm laterally
Verified step by step guidance1
Understand the concept of circumduction: Circumduction is a circular movement of a limb that combines flexion, extension, abduction, and adduction in sequence, resulting in a conical motion.
Identify the key characteristics of circumduction: It involves moving a limb in a circular pattern, where the distal end of the limb moves in a circle while the proximal end remains relatively stable.
Analyze each movement option: Consider whether each movement involves a circular motion that includes the combination of flexion, extension, abduction, and adduction.
Evaluate the movement of a pitcher winding up to throw the ball: This action involves the arm moving in a circular pattern, incorporating multiple joint movements, which aligns with the definition of circumduction.
Conclude that the movement of a pitcher winding up to throw the ball is an example of circumduction, as it involves the complex, circular motion characteristic of this type of movement.
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