Among humans, the hands play an important function in body language and sign language. Likewise, the ten digits of two hands and the twelve phalanges of four fingers (touchable by the thumb) have given rise to number systems and calculation techniques.

2023年6月12日 · Your hands and wrists are some of the most complex parts of your body. Their ability to bend, move and flex helps you complete almost any task or motion you can think of. Hands and wrists are critical to most people’s daily routines.

There are many common hand problems that can interfere with activities of daily living (ADLs), including the following: Arthritis is joint inflammation and can occur in multiple areas of the hand and wrist. Arthritis of the hand can be very painful.

2025年1月2日 · Hand, grasping organ at the end of the forelimb of certain vertebrates that exhibits great mobility and flexibility in the digits and in the whole organ. It is made up of the wrist joint, the carpal bones, the metacarpal bones, and the …

Each of your hands has three types of bones: phalanges in your fingers; metacarpals in your mid-hand, and carpals in your wrist.

For other uses, see Hand (disambiguation). A hand is the part of the body at the end of an arm. Most humans have two hands. Each hand usually has four fingers and a thumb. On the inside of the hand is the palm. The five bones inside this part of the hand are called metacarpals. The wrist connects the hand to the arm.

2023年11月13日 · Overview of the bones of the hand and wrist. 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.