What motion of the skeleton involves putting your hand out straight and then turning it over and back again?
• opposition
• flexion and extension
• circumduction
• abduction and adduction
Circumlocution is incorrect the actual answer is abduction and adduction
Itachi is right.
The motion you are describing is called pronation and supination. It involves putting your hand out straight with the palm facing down (pronation), and then turning it over so that the palm is facing up (supination), and then repeating the process again.
To determine the correct answer among the options provided, let's break down the possible choices:
1. Opposition: Opposition refers to the movement that allows you to bring the thumb and any other finger together, like when you touch your thumb to your pinky finger. This motion is not described in the question, so it can be eliminated.
2. Flexion and extension: Flexion refers to decreasing the angle between two body parts, while extension refers to increasing the angle. For example, if you were to bend your arm at the elbow, it would be flexion, and then straightening it out again would be extension. This motion is not described in the question, so it can be eliminated.
3. Circumduction: Circumduction is a multi-directional movement that involves moving a body part in a circular motion. It is typically a combination of flexion, extension, abduction, and adduction. Although the motion you described involves rotation, it is not a circular motion, so we can eliminate circumduction.
4. Abduction and adduction: Abduction refers to moving a body part away from the midline of the body, while adduction refers to moving a body part towards the midline. These terms are relevant when discussing movements of limbs, such as moving your leg away from or towards the other leg. However, they do not accurately describe the motion of turning the hand over as described in the question.
Therefore, the correct answer is not among the provided options. The motion you are describing is pronation and supination.