The thumb is the king of the palm. It acts in conjunction with the fingers because you cannot hold anything with the fingers alone. The finger next to the thumb is called the first finger or the index finger. The finger next to the index finger is called the second or the middle finger, which is the longest among the fingers. And the one next to it is the third or the ring finger. The last finger is called the fourth or the little finger because of its size.
Every finger has three parts or phalanges. The part which has the nails is called the first phalange, the middle one is the second and the one adjoining the palm is the third phalange. The thumb has two phalanges — the first of them has the nails over it and the second one adjoins the palm. Very few hands have phalanges of equal width. There are differences in the length and breadth of the phalanges. It is this difference which indicates the hidden feelings of the owner of the hand as also his disposition. But, we will come to this aspect when we discuss the fingers in detail. Each finger has two knots — the first one is situated between the first and the second phalange and the second one is between the second and the third phalange. The thumb has two phalanges, with only one knot over it, when seen from the back side.