Tuesday, June 29, 2010


PURPOSE : To determine if each finger can move independently.
MATERIALS : Your hands
  • Place the tips of your ring finger together.
  • Fold the other fingers down so that the second set of knuckles touch
  • Try moving the ring fingers apart by moving them backwards. You may not slide the fingers sideways and the knuckles must remain together.
  • Experiment to test the independence of the other fingers. Place all the knuckles together except the two fingers to be tested.

RESULTS : You will be unable to separate the ring fingers and the center fingers. The index and the little fingers are easily moved.
WHY? A ligament connects the ring finger to the middle finger and other digits. Immobilizing either the middle or ring finger prevents the movement of the other finger. The index and little fingers seems to work independently of the other fingers.

No comments:

Post a Comment