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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

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 radialis,...
Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a short...
Muscles that Move the Forearm01:16

Muscles that Move the Forearm

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...
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side of the...
Assessment of radial pulse01:11

Assessment of radial pulse

Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:

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Related Experiment Video

Updated: Jun 4, 2026

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
08:27

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

Published on: May 23, 2025

Wrist injuries.

D I Alexander

    Canadian Family Physician Medecin De Famille Canadien
    |February 3, 2011
    PubMed
    Summary

    Early recognition and treatment of carpal scaphoid fractures are crucial. Distinguishing between Colles

    Area of Science:

    • Orthopedics
    • Traumatology
    • Radiology

    Background:

    • Carpal scaphoid fractures represent 60-70% of all carpal injuries.
    • Early diagnosis and management are essential to prevent complications.
    • Distal radius fractures commonly present with posterior or anterior displacement.

    Purpose of the Study:

    • To emphasize the importance of early recognition and treatment of scaphoid fractures.
    • To outline the management principles for scaphoid and distal radius fractures.
    • To differentiate between Colles' and Smith's fractures.

    Main Methods:

    • Clinical suspicion and radiographic evaluation at two and four weeks for scaphoid fractures.
    • Closed reduction and splinting/casting for distal radius fractures.

    Related Experiment Videos

    Last Updated: Jun 4, 2026

    Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
    08:27

    Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

    Published on: May 23, 2025

  • Distinguishing features and management of Colles' and Smith's fractures.

    • Main Results:

    • Delayed diagnosis of scaphoid fractures can lead to adverse outcomes.
    • Displaced scaphoid fractures require reduction.
    • Colles' fractures in young individuals have a high complication rate, necessitating extensive rehabilitation.

    Conclusions:

    • Prompt diagnosis and appropriate management of carpal and distal radius fractures are vital.
    • Accurate differentiation between fracture types ensures optimal treatment and patient outcomes.
    • Scaphoid fractures require vigilant follow-up to confirm or exclude injury.