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Multiple Choice
Which of the following lists correctly names the bones of the forearm, in order from lateral (thumb side) to medial (pinky side)?
A
Humerus, Radius
B
Radius, Ulna
C
Ulna, Radius
D
Scapula, Clavicle
Verified step by step guidance
1
Understand the anatomical position: In the anatomical position, the body is upright, arms are at the sides, and palms face forward. This orientation helps determine lateral (thumb side) and medial (pinky side) directions.
Identify the bones of the forearm: The forearm consists of two bones, the radius and the ulna. The radius is located on the lateral side (thumb side), while the ulna is on the medial side (pinky side).
Eliminate incorrect options: The humerus is part of the upper arm, not the forearm. The scapula and clavicle are part of the shoulder girdle, not the forearm.
Focus on the correct order: From lateral to medial, the bones of the forearm are arranged as Radius (thumb side) followed by Ulna (pinky side).
Verify anatomical accuracy: Confirm that the radius is always lateral and the ulna is always medial in the forearm, regardless of the position of the hand or arm.