What type of angular movement moves a limb or finger in a motion that describes a cone in space? A. Abduction B. Circumduction C. Opposition D. Adduction

Break Down the Problem

1. Identify the types of angular movements relevant to the question.
2. Analyze the motion described in the question, specifically looking for a conical movement.

Relevant Concepts

1. Abduction: Moving a limb away from the midline.
2. Adduction: Moving a limb toward the midline.
3. Circumduction: Circular movement that involves a combination of flexion, extension, abduction, and adduction, creating a conical shape.
4. Opposition: Thumb movement toward the fingers.

Analysis and Detail

• Circumduction is the only option that describes a limb or finger moving in a circular motion while tracing a cone. While abduction and adduction relate to moving towards or away from the midline, they do not facilitate the conical motion described.

Verify and Summarize

Given that circumduction encompasses the movements of all the other options while resulting in a conical path, we can conclude that the correct answer is B. Circumduction.

Final Answer

B. Circumduction