2.4.5. Anatomy Lab Friday - Joints UE Completion

Question 1

Gamekeeper’s thumb is an injury to what?

Answer 1

The ulnar collateral ligament (UCL)

Question 2

Which action of the forearm gives you the “extra half inch of reach” that you need when reaching for something up high on a shelf?

Answer 2

Supination of the forearm; the radial head “unscrews itself” to lengthen the forearm as you supinate.