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A doubled flexor carpi radialis muscle.

F A Saadeh¹, S H Kawas, R A Bergman

¹Department of Human Morphology, American University of Beirut.

Gegenbaurs Morphologisches Jahrbuch

|January 1, 1988

Summary

A rare anatomical variation, a doubled flexor carpi radialis muscle, was found in a male cadaver. This extra muscle originated from septa, inserted on the third metacarpal, and shared innervation and sheath with the standard muscle.

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Area of Science:

Anatomy
Human Morphology
Musculoskeletal System

Background:

Anatomical variations are crucial for understanding human morphology.
The flexor carpi radialis is a key forearm muscle involved in wrist flexion and radial deviation.
Variations in forearm muscle anatomy can impact surgical procedures and biomechanics.

Purpose of the Study:

To document and describe an unusual duplication of the flexor carpi radialis muscle.
To compare the observed variation with existing literature on forearm muscle anomalies.

Main Methods:

Gross anatomical dissection of an embalmed adult male cadaver.
Detailed observation and documentation of the anomalous muscle's origin, insertion, and relationship to surrounding structures.
Review of anatomical literature for similar reported variations.

Main Results:

A duplicated flexor carpi radialis muscle was identified in the right forearm.
The accessory muscle originated from intermuscular septa and inserted onto the third metacarpal bone.
The anomalous muscle shared the nerve supply and synovial sheath with the primary flexor carpi radialis muscle.

Conclusions:

This case presents a rare anatomical variation of the flexor carpi radialis.
Such variations highlight the importance of thorough anatomical knowledge in clinical practice.
Further documentation of such anomalies contributes to a comprehensive understanding of human musculoskeletal diversity.

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