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

3.2K
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...
3.2K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

11.3K
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...
11.3K
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

11.0K
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...
11.0K
Pleiotropy01:33

Pleiotropy

44.2K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
44.2K
Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

14.3K
The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
14.3K
Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

4.1K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
4.1K

You might also read

Related Articles

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

Sort by
Same author

Psychological Attachment Orientation and Long-Term Posttraumatic Stress Symptoms Among Family Members of ICU Patients.

Critical care explorations·2022
Same author

Systemic Oxygen Utilization in Severe COVID-19 Respiratory Failure: A Case Series.

Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine·2021
Same author

Antiepileptic Drug Management in Acute Ischemic Stroke: Are Vascular Neurologists Utilizing Electroencephalograms? An Observational Cohort Study.

BioMed research international·2021
Same author

Somatic PRKAR1A mutation in sporadic atrial myxoma with cerebral parenchymal metastases: a case report.

Journal of medical case reports·2019
Same author

Clinical Reasoning: A 71-year-old man receiving treatment for cryptococcal meningitis, developing new-onset lethargy.

Neurology·2019
Same author

Trapeziometacarpal Fusion With and Without Distal Scaphoid Excision: A Cadaveric Model Comparing Thumb Range of Motion.

Hand (New York, N.Y.)·2019

Related Experiment Video

Updated: Apr 12, 2026

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
08:16

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis

Published on: March 4, 2014

33.8K

Polydactyly of the hand.

Katherine C Faust1, Tara Kimbrough, Jean Evans Oakes

  • 1Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA. kfaust@tulane.edu.

American Journal of Orthopedics (Belle Mead, N.J.)
|May 8, 2015
PubMed
Summary

Polydactyly is a common congenital hand abnormality involving abnormal anatomy, not just duplication. Understanding its classification and surgical options is crucial for orthopedic surgeons.

More Related Videos

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

2.4K
Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
07:06

Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury

Published on: March 21, 2025

1.3K

Related Experiment Videos

Last Updated: Apr 12, 2026

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
08:16

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis

Published on: March 4, 2014

33.8K
Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

2.4K
Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
07:06

Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury

Published on: March 21, 2025

1.3K

Area of Science:

  • Orthopedics
  • Congenital Hand Abnormalities

Background:

  • Polydactyly is a frequent congenital hand abnormality, second only to syndactyly.
  • It involves complex anatomical deviations, including hypoplastic structures and abnormal joint, tendon, and ligament formations.

Purpose of the Study:

  • To highlight the significance of polydactyly as a common congenital hand abnormality.
  • To emphasize the need for orthopedic surgeons to grasp the fundamental aspects of this condition.

Main Methods:

  • Review of polydactyly classification systems.
  • Overview of surgical interventions for polydactyly.

Main Results:

  • Polydactyly presents diverse anatomical anomalies beyond simple duplication.
  • Surgical approaches vary from simple excision to complex reconstructive procedures.

Conclusions:

  • The high prevalence of polydactyly necessitates a thorough understanding for orthopedic practice.
  • Effective management requires knowledge of classification and tailored surgical strategies.