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학술논문

Morphological classification, anatomical variations, innervation patterns, musculocutaneous nerve relation of the coracobrachialis muscle: anatomical study and clinical significance

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영문명
Morphological classification, anatomical variations, innervation patterns, musculocutaneous nerve relation of the coracobrachialis muscle: anatomical study and clinical significance
발행기관
대한해부학회
저자명
Ashraf Youssef Nasr Rawan Ashraf Youssef
간행물 정보
『Anatomy and Cell Biology』Vol.57(2), 194~203쪽, 전체 10쪽
주제분류
의약학 > 의학일반
파일형태
PDF
발행일자
2024.06.30
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국문 초록

The anatomical variations of coracobrachialis muscle (CBM) are of great clinical importance. This study aimed to elucidate the morphological variations, innervation patterns and musculocutaneous nerve (MCN) relation to CBM. Upper limbs of fifty cadavers (30 males and 20 females) were examined for proximal and distal attachments, innervation pattern of CBM and its relation to MCN. Four morphological types of CBM were identified according to number of its heads. The commonest type was the two-headed (63.0%) followed by the single belly (22.0%), three-headed (12.0%) and lastly four headed (3.0%) type. Moreover, an abnormal insertion of CBM was observed in four left limbs (4.0%); one inserting into the medial humeral epicondyle, the second into the upper third of humeral shaft, the third one in the common tendon of biceps, and the fourth one showing a bifurcated insertion. Also, four different innervation patterns of CBM were identified including MCN (80.0%), lateral cord (14.0%), lateral root of median nerve (4.0%), and median nerve itself (2.0%). The course of MCN was superficial to the single belly CBM (19.0%) and in-between the heads in the other types (71.0%). Measurements of the length and original distance of CBM muscular branches originating from MCN revealed no sex or side significant difference. Awareness of the anatomic variations, innervation patterns, and MCN relation of CBM is imperative in recent diagnostic and surgical procedures to obtain definite diagnosis, effective management and good outcome.

영문 초록

목차

Introduction
Materials and Methods
Results
Discussion
ORCID
Author Contributions
Conflicts of Interest
Funding
Acknowledgements
References

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APA

Ashraf Youssef Nasr,Rawan Ashraf Youssef. (2024).Morphological classification, anatomical variations, innervation patterns, musculocutaneous nerve relation of the coracobrachialis muscle: anatomical study and clinical significance. Anatomy and Cell Biology, 57 (2), 194-203

MLA

Ashraf Youssef Nasr,Rawan Ashraf Youssef. "Morphological classification, anatomical variations, innervation patterns, musculocutaneous nerve relation of the coracobrachialis muscle: anatomical study and clinical significance." Anatomy and Cell Biology, 57.2(2024): 194-203

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