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6 dni temu · 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.
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12 cze 2023 · Wrist muscles. Your wrist shares muscles with your forearm. Their groups include: Flexion: Muscles that let you move your wrist down, toward your palm. Extension: Muscles that pull your wrist up, like you would to make a “stop” gesture at someone in front of you. Adduction: Muscles that let you bend your wrist in, toward the center of your ...
16 lis 2023 · The arm muscles are a group of five muscles located in the region between the shoulder and elbow joints. They are divided into two distinct compartments of the arm. The anterior (flexor) compartment contains the biceps brachii, coracobrachialis and brachialis muscles. The posterior (extensor) compartment contains only the triceps brachii muscle.
Lumbricals. The lumbricals are a group of 4 narrow muscles in the metacarpal area of the hand. These are attached to the 2nd to 5th digits of the hand, helping with finger flexion and extension. Interossei. The interossei are small, worm-like muscles located between the metacarpal bones.
13 lis 2023 · 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.
13 lis 2023 · Major muscles of the shoulder, arm, forearm and hand. The upper limb (upper extremity) is truly a complex part of human anatomy. It is best studied broken down into its components: regions, joints, muscles, nerves, and blood vessels.
8 paź 2024 · The muscles in the anterior compartment of the forearm are organised into three layers: Superficial: flexor carpi ulnaris, palmaris longus, flexor carpi radialis, pronator teres. Intermediate: flexor digitorum superficialis. Deep: flexor pollicis longus, flexor digitorum profundus and pronator quadratus.
