The human hand Anatomy
The human hand, the most distal part of the upper limb, is a remarkable feat of engineering and evolution. It is strong enough to allow climbers to tackle any mountain, but also sufficiently precise for the manipulation of some of the world’s smallest objects and the performance of complex actions.
The hand itself consists of specific bones onto which various muscles are attached, and a collection of neurovascular structures responsible for drainage and innervation. However, the intrinsic muscles of the hand are only partially responsible for all its range of motion. The other major contributors are actually the forearm muscles, which project tendons towards the hand via an equally complex and flexible anatomical structure, called the wrist.
The muscles of the hand consist of five groups:
Thenar muscles
Hypothenar muscles
Lumbricals
Palmar interossei
Dorsal interossei
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