Differences between ulna and radius in English and not Swahili

Here are the key differences between the ulna and the radius:

• Location: The ulna is the bone on the medial side of the forearm (pinky finger side) when in anatomical position. The radius is the bone on the lateral side of the forearm (thumb side).
• Size and Shape: The ulna is larger and thicker at the elbow end, forming the main part of the elbow joint with the humerus. The radius is larger and thicker at the wrist end, forming the main part of the wrist joint with the carpal bones.
• Articulation at Elbow: The ulna has a large, C-shaped structure called the trochlear notch that articulates with the trochlea of the humerus, allowing for flexion and extension. The radius has a smaller, disc-shaped head that articulates with the capitulum of the humerus and the radial notch of the ulna, allowing for rotation.
• Movement: The radius is the bone that rotates around the ulna during pronation (turning the palm down) and supination (turning the palm up) of the forearm. The ulna remains relatively stable during these movements.

3 done, 2 left today. You're making progress.