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Related Concept Videos

Muscles of the Forearm that Move the Hand and Fingers01:16

Muscles of the Forearm that Move the Hand and Fingers

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The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
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Muscles that Move the Forearm01:16

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The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
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Related Experiment Video

Updated: Mar 24, 2026

Therapy Interventions for Upper Limb Amputees Undergoing Selective Nerve Transfers
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[A myoelectric prosthesis for the forearm amputee].

F L Martins, L S Martins, P Davin

    Acta Medica Portuguesa
    |November 1, 1989
    PubMed
    Summary

    Myoelectric prostheses for forearm amputees have advanced due to new materials and electronics. However, their functionality still lags behind the human hand, and high costs limit accessibility.

    Area of Science:

    • Biomedical Engineering
    • Rehabilitation Technology

    Context:

    • Forearm amputations present unique challenges for prosthetic restoration.
    • The evolution of prosthetic technology is crucial for improving patient quality of life.

    Purpose:

    • To revise the principles of action for myoelectric forearm prostheses.
    • To detail the components, indications, and contraindications of these advanced devices.

    Summary:

    • Recent advancements in synthetic materials, electronics, and miniaturized computers have significantly improved myoelectric prosthesis technology.
    • Despite progress, current functional capabilities remain limited compared to the biological human hand.
    • French law regarding indications and contraindications for these prostheses is also discussed.

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    A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
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    Impact:

    • Highlights the ongoing need for further innovation to bridge the gap between prosthetic and natural hand function.
    • Identifies high cost as a significant barrier to the widespread prescription and adoption of advanced myoelectric prostheses.