Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

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

Muscles of the Forearm that Move the Hand and Fingers

2.9K
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...
2.9K
Muscles that Move the Forearm01:16

Muscles that Move the Forearm

4.4K
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...
4.4K
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

10.4K
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...
10.4K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

10.7K
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...
10.7K
Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

3.4K
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...
3.4K
Lenz's Law01:15

Lenz's Law

6.8K
The direction in which the induced emf drives the current around a wire loop can be found through the negative sign. However, it is usually easier to determine this direction with Lenz's law, named in honor of its discoverer, Heinrich Lenz (1804–1865). Lenz's law states that the direction of the induced emf drives the current around a wire loop always to oppose the change in magnetic flux that causes the emf.
If a bar magnet is moved toward a coil such that the magnetic flux...
6.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Remifentanil for fetal immobilization and analgesia during the ex utero intrapartum treatment procedure under combined spinal-epidural anaesthesia.

British journal of anaesthesia·2011
Same author

Endemicity and inter-city spread of Burkholderia cepacia genomovar III in cystic fibrosis.

The Journal of pediatrics·2001
Same author

Pediatric asthma: "Real world" measures of effectiveness.

Pediatric pulmonology. Supplement·2001
Same author

Stature as a prognostic factor in cystic fibrosis survival.

Journal of the American Dietetic Association·2001
Same author

Inhaled corticosteroids in childhood asthma: growing concerns.

Drugs·2000
Same author

Diagnosis, screening and management of cystic fibrosis related diabetes mellitus: a consensus conference report.

Diabetes research and clinical practice·1999
Same journal

Injury surveillance during the 2024 under 20s Men's European Field Lacrosse Championships.

The Physician and sportsmedicine·2026
Same journal

Understanding health insurance and the delay in care for partial meniscectomies: a comparison between public and private coverage.

The Physician and sportsmedicine·2026
Same journal

Injury incidence and risk factors in youth American football versus soccer: a national emergency department analysis.

The Physician and sportsmedicine·2026
Same journal

Links between concussion history, hypertension, and hypertension contributing factors among adolescent football athletes.

The Physician and sportsmedicine·2026
Same journal

Core muscle endurance and balance as predictors of lateral ankle sprain in adolescent team-sport athletes: a prospective cohort study.

The Physician and sportsmedicine·2026
Same journal

Impact of Achilles tendon rupture on performance and career outcomes in NFL players: a matched cohort study.

The Physician and sportsmedicine·2026
See all related articles

Related Experiment Video

Updated: Mar 17, 2026

Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
05:18

Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome

Published on: May 26, 2023

2.0K

Offensive Lineman's Thumb.

R M Fumich, R J Fink, G R Hanna

    The Physician and Sportsmedicine
    |July 20, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Football players using thumbs for leverage can cause thumb joint dislocations. This blocking technique, though potentially legal, poses a risk of injury and may require rule clarification to prevent future incidents.

    More Related Videos

    Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography
    04:06

    Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography

    Published on: January 12, 2024

    1.1K
    Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
    10:36

    Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach

    Published on: May 23, 2025

    960

    Related Experiment Videos

    Last Updated: Mar 17, 2026

    Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
    05:18

    Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome

    Published on: May 26, 2023

    2.0K
    Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography
    04:06

    Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography

    Published on: January 12, 2024

    1.1K
    Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
    10:36

    Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach

    Published on: May 23, 2025

    960

    Area of Science:

    • Sports Medicine
    • Orthopedic Surgery
    • Biomechanics

    Background:

    • Offensive linemen in football utilize various techniques to gain a mechanical advantage.
    • Thumb involvement in blocking can provide additional leverage but carries inherent risks.
    • Metacarpophalangeal joint dislocations are significant injuries affecting hand function.

    Purpose of the Study:

    • To report on a specific blocking technique leading to thumb injuries in football.
    • To analyze the biomechanics of the described blocking maneuver.
    • To recommend potential rule modifications to enhance player safety.

    Main Methods:

    • Case report of two football players experiencing thumb metacarpophalangeal joint dislocations.
    • Analysis of the blocking technique employed by the athletes.
    • Review of current football rules regarding blocking techniques.

    Main Results:

    • Two offensive linemen sustained metacarpophalangeal joint dislocations of the thumbs.
    • The injuries resulted from using thumbs to generate leverage during blocking.
    • The technique, as currently interpreted, may be permissible under existing rules.

    Conclusions:

    • The described thumb blocking technique presents a considerable risk of metacarpophalangeal joint dislocation.
    • Clarification or modification of football rules is recommended to discourage this dangerous practice.
    • Player safety in football necessitates a review of techniques that exploit anatomical vulnerabilities.