The little finger side of the hand is the pushing side; the little finger side of the wrist is the heel side. The thumb side of the hand is the pulling side. Since pulling is so much more important a function of the hand, the thumb side of hand and wrist and all the bones of that side, with the first two fingers, are larger.
The little finger side of the hand sets across the end of the forearm at a sharper angle than does the thumb side. It is narrower and never wholly conceals the rest of the hand. The pisiform bone, or heel of the hand, is always conspicuous on the lower side of the wrist. To it attaches the flexor carpi ulnaris muscle, corresponding with the tendon of Achilles.
1 Pisiform (pea-shaped) bone
2 Flexor carpi ulnaris
In resting the wrist on a table, the weight should rest on the pisiform bone. Instinct protects the more sensitive unciform bone, on the thumb end of the wrist arch.
In this position the fingers are always curled up or arched, on account of the shortness of the flexor tendons.
1 Pisiform bone
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