http://en.wikipedia.org/wiki/Palmaris_longus
Not everyone has this thing.
You can test to see if you have one. You put your fingers on an area of the inner forearm about 2in past the base of your palm, and squeeze. If you have one, your fingers will curl inwards.
Not everyone has this thing.
You can test to see if you have one. You put your fingers on an area of the inner forearm about 2in past the base of your palm, and squeeze. If you have one, your fingers will curl inwards.