Anatomy Quick Tips: Arms

Summary by Krater

This video provides anatomy quick tips on how to draw arms, covering the skeletal structure, major muscles like the biceps, triceps, and brachioradialis, as well as S-curves, C-curves, curve weight, reductions, and forearm rotation.

From the video

Answers: How do you draw arms and understand arm anatomy?

• Upper arm skeletal structure
• Biceps, triceps, and brachioradialis muscles
• S-curves and C-curves in arm drawing
• Curve weight and reduction techniques
• Forearm rotation and movement

What it concludes

• The humerus is the bone of the upper arm, while the ulna and radius make up the lower arm.
• The brachioradialis connects from the lower back of the humerus, under the triceps, wraps around the lower biceps, and connects to the radius.
• Biceps curve weight is heavier toward the elbow, whereas triceps curve weight is closer to the shoulder.
• When the forearm is rotated, the radius and ulna cross or uncross, changing the arm's shape and S-curve contours.