Get a handful labeled anatomy of the hand diagrams to assist your study about the structures of our hands. These 101 Diagramss are designed to guide you in studying the structure of the hand muscle, bones, and anatomy. We use our hands for a variety of functions, including gross and fine motor movements. Gross motor movements allow us to pick up large objects or perform heavy labor. Fine motor movements enable us to perform delicate tasks, such as holding small objects or performing detailed work. Study more about the parts of the hands by following our diagrams below.
As you can see in the above hand diagram, there are 27 bones within the wrist and hand. The wrist itself contains eight small bones, called carpals. The carpals join with the two forearm bones, the radius and ulna, forming the wrist joint. Further into the palm, the carpals connect to the metacarpals. There are five metacarpals forming the palm of the hand. One metacarpal connects to each finger and thumb. Small bone shafts called phalanges line up to form each finger and thumb. More detailed diagrams of the muscles are on the following images.
The joints of the hand, fingers, and thumb are covered on the ends with articular cartilage. The function of articular cartilage is to absorb shock and provide an extremely smooth surface to facilitate motion. The muscles of the hand are divided into intrinsic and extrinsic groups. The extrinsic muscles are located in the anterior and posterior compartments of the forearm. They control crude movements and produce a forceful grip. The intrinsic muscles of the hand are located within the hand itself. They are responsible for the fine motor functions of the hand.
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