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30 Οκτ 2023 · The humerus is the longest and largest bone of the upper limb. It consists of a proximal end, a shaft and a distal end, all which contain important anatomical landmarks. The humerus articulates with the scapula proximally at the glenohumeral joint so it participates in the movements of the shoulder.
29 Ιουν 2021 · See anatomy pictures of the 27 bones in the hand and wrist, how they are connected with tendons and muscles and the nerves that run through the skeletal structure.
27 Σεπ 2024 · The muscles that act on the hand can be divided into two groups: Extrinsic muscles – located in the anterior and posterior compartments of the forearm. They control crude movements and produce a forceful grip. Intrinsic muscles – located within the hand itself. They are responsible for the fine motor functions of the hand.
25 Οκτ 2024 · Most of the muscles that move the wrist, hand, and fingers are located in the forearm. These thin, strap-like muscles extend from the humerus, ulna and radius and insert into the carpals, metacarpals, and phalanges via long tendons.
3 ημέρες πριν · Click to View Larger Image. The hand is an intricately complex structure whose muscles have evolved to permit an unequalled array of movements. More than 30 individual muscles in the hand and forearm work together to achieve these diverse movements.
21 Ιαν 2018 · Some of the muscles, tendons, and ligaments of the hand, as well as those of the forearm that affect hand movement, include: Extensor digitorum: This forearm muscle is responsible for extending...
Muscles originating in the forearm are the extrinsic muscles of the hand. The intrinsic muscles of the hand provide the fine motor movements while the extrinsic muscles permit strength. A common rule of thumb is that any muscle tendon that crosses a joint will act on that joint.
