A STUDY ON MORPHOLOGY OF THE BICEPS BRACHII MUSCLE

AbstractThe anatomical variations and abnormalities of the muscles of the upper limb have become significant because of new imaging techniques, such as computed tomography and magnetic resonance imaging. Among the three muscles of the anterior compartment of the arm, a very uncommon anomaly of the biceps is having three or more heads. Knowledge of the existence of the three headed or four headed biceps brachii may become significant in preoperative diagnosis and during surgery of the upper limb. The present study was undertaken to observe the anomalous origin, insertion and the incidence of three or more heads biceps brachii in the adult human cadavers. This study was carried out on 24 human cadavers at Dr. Pinnamaneni Siddhartha institute of medical sciences & research foundation (Dr. PSIMS & R.F) Gannavaram; Krishna Dist; A.P. Variant biceps brachii may cause compression of neurovascular structures because of their close relationship to brachial artery and median nerve. The surgeons and traumatologists have to keep such muscular variations in mind.

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Unusual Variation of the Biceps Brachii with Possible Median Nerve Entrapment

Prague Medical Report ◽

10.14712/23362936.2015.55 ◽

2015 ◽

Vol 116 (2) ◽

pp. 167-172 ◽

Cited By ~ 3

Author(s):

Danylo Yershov ◽

Radovan Hudák

Keyword(s):

Medical Students ◽

Median Nerve ◽

Upper Limb ◽

Brachial Artery ◽

Biceps Brachii ◽

Coracoid Process ◽

Unexpected Result ◽

Clinical Perspective ◽

Anterior Compartment ◽

The Third

The biceps brachii is one of three muscles of the anterior compartment of arm. Variations of the biceps brachii are not rare. The most frequent is the existence of a third head called the humeral head by Le Double (1897) (Rodríguez-Vázquez et al., 1999). Our article is based on the unexpected result of a routine dissection class held for medical students. Dissection was performed according to the guidelines accepted by the anatomy department (Seichert, 1999). We describe a third (accessory) head of the biceps brachii. In addition of two regular heads, the third head originated together with the short head from the coracoid process and had three insertions on the humerus after enfolding the median nerve and the brachial artery. This particular variation is important from a clinical perspective as the third head may cause entrapment syndrome of the median nerve and hypoperfusion of the upper limb due to compression of the brachial artery.

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Pattern study of union of two heads of biceps and its clinical significance

International Journal of Research in Medical Sciences ◽

10.18203/2320-6012.ijrms20171280 ◽

2017 ◽

Vol 5 (4) ◽

pp. 1646

Author(s):

Jyoti Rohilla ◽

Aarti Rohilla ◽

Kamal Singh ◽

Suresh Kanta Rathee

Keyword(s):

Median Nerve ◽

Clinical Significance ◽

Brachial Artery ◽

Elbow Joint ◽

Biceps Brachii ◽

Diagnostic Procedures ◽

Close Relationship ◽

Long Head ◽

Neurovascular Structures

Background: Biceps brachii derives its name from its two proximally attached parts or ‘heads’ that is known as long head and short head. Two tendons form elongated bellies that though closely applied get fused within 7cm or so above the elbow joint. These variations should be kept in mind during surgical and diagnostic procedures done by clinicians.Methods: A total of 18 cadavers were dissected for two successive years during undergraduate and were observed for different patterns of fusion of two heads of biceps brachii.Results: The present study showed that frequency of fusion of heads of biceps brachii in its upper one-third part was observed less commonly while it was frequently observed in its middle one-third part.Conclusions: Variation in union of heads might be significant in causing compression of neurovascular structures because of their close relationship to the brachial artery and median nerve.

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A study of variations of anterior belly of digastric muscle

National Journal of Clinical Anatomy ◽

10.1055/s-0039-1700735 ◽

2017 ◽

Vol 06 (02) ◽

pp. 101-104

Author(s):

Pratik Khona ◽

Deepali U Kulkarni ◽

Umesh K Kulkarni

Keyword(s):

Anatomical Variations ◽

Digastric Muscle ◽

Second Variation ◽

Medical Sciences ◽

Postgraduate Students ◽

The Third ◽

Human Cadavers ◽

Mandibular Region ◽

Anterior Belly ◽

Accessory Belly

Abstract Aim : To study the anatomical variations of anterior belly of digastric muscle. Materials & Methods: In the present study, 30 human cadavers from the Department of Anatomy, Belagavi Institute of Medical Sciences, Belagavi were examined for the variations of anterior belly of digastric muscle during routine dissections of undergraduate and postgraduate students. The variations found were neatly dissected and photographs taken wherever necessary. Result: Out of 30 cadavers dissected3 specimens presented with variations. Discussion: First variation found had a unilateral accessory belly of digastric muscle on right side. Second variation was unilateral accessory belly of digastric muscle on left side and the third variation was bilateral accessory slips of digastric muscles. The details of these variations will be dealt in the article. Conclusion: As the variations of anterior belly of digastric muscle are common, the radiologists and the surgeons have to watch out for these while dealing with Sub mandibular region.

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Third head of biceps brachii in anterior compartment of left arm - A Case Report

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v3i3.12899 ◽

2018 ◽

Vol 3 (3) ◽

Author(s):

B Muraleedhar ◽

M. S. Danigond ◽

Hanamanth Bagi

Keyword(s):

Case Report ◽

Surgical Procedures ◽

Upper Limb ◽

Elbow Joint ◽

Biceps Brachii ◽

Anterior Compartment ◽

Medical College ◽

Medial Side ◽

Long Head ◽

Radial Tuberosity

Biceps brachii is a flexor of elbow joint and also a powerful supinator of the forearm present in the anterior compartment of arm and usually it originates from two head as its name indicating one is long head of biceps originating from supraglenoid tubercle of scapula and another one is short head which is originating from coracoids process of scapula. During routine dissection for Ayurvedic undergraduates, In the department of Shareera Rachana (Anatomy) in SDM Trust’s Ayurvedic Medical College, Terdal, Tq. Jamakhandi, Dist. Bagalkot, we found that third head of biceps brachii was originating from medial side of shaft of humerus which is just below the insertion of coracobrachialis along with the intramuscular septa and inserting into the radial tuberosity along with long and short head of biceps. Such variations are important for clinicians and surgeons for diagnostic and surgical procedures of the upper limb.

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A CADAVERIC STUDY ON THE ANATOMICAL VARIATIONS OF THE MUSCULOCUTANEOUS NERVE IN RELATION WITH MEDIAN NERVE AND CORACOBRACHIALIS MUSCLE

Journal of Anatomical Sciences - Volume 27(2), December 2019 ◽

10.46351/jas.v26i2pp58-61 ◽

2018 ◽

Vol 26 (2) ◽

Author(s):

Alok Tripathi ◽

Hina Kausar ◽

Saurabh Arora ◽

Satyam Khare ◽

Shilpi Jain ◽

...

Keyword(s):

Median Nerve ◽

Biceps Brachii ◽

Axillary Artery ◽

Anatomical Variations ◽

Musculocutaneous Nerve ◽

Cadaveric Study ◽

Lateral Side ◽

Medical College ◽

Lateral Cord ◽

Human Cadavers

Introduction: Musculocutaneous nerve is derived from the lateral cord of brachial plexus and supplies the muscles of the arm. Initially the nerve accompanies the lateral side of third part of axillary artery and then pierces the coracobrachialis muscle after supplying it, passes downwards and laterally in between biceps brachii and brachialis sending branches to both and continues as lateral cutaneous nerve of the forearm. Variations of musculocutaneous nerve is important for surgeons, orthopedic surgeons and traumatologists, so a detailed cadaveric study of musculocutaneous nerve was done to observe the variations. Material & Methods: Musculocutaneous nerve was studied in 50 human cadavers (30 males and 20 females) of age group 40-60 years at Department of Anatomy, Subharti Medical College, Meerut, India. Results: Musculocutaneous nerve was present in all the cases and was piercing the coracobrachialis muscle. In 4% of the cases, the nerve was rejoining the median nerve after piercing the coracobrachialis.

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A rare variation in the formation of the lower trunk of the brachial plexus its embryological basis and clinical importance - a case report

Journal of College of Medical Sciences-Nepal ◽

10.3126/jcmsn.v6i4.6727 ◽

2012 ◽

Vol 6 (4) ◽

pp. 49-52

Author(s):

N Satyanarayana ◽

R Guha ◽

P Sunitha ◽

GN Reddy ◽

G Praveen ◽

...

Keyword(s):

Case Report ◽

Brachial Plexus ◽

Upper Limb ◽

Clinical Importance ◽

Medical Sciences ◽

Nerve Roots ◽

Rare Variation ◽

Lower Trunk ◽

Male Cadaver ◽

The Right

Brachial plexus is the plexus of nerves, that supplies the upper limb.Variations in the branches of brachial plexus are common but variations in the roots and trunks are very rare. Here, we report one of the such rare variations in the formations of the lower trunk of the brachial plexus in the right upper limb of a male cadaver. In the present case the lower trunk was formed by the union of ventral rami of C7,C8 and T1 nerve roots. The middle trunk was absent. Upper trunk formation was normal. Journal of College of Medical Sciences-Nepal,2011,Vol-6,No-4, 49-52 DOI: http://dx.doi.org/10.3126/jcmsn.v6i4.6727

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Cross-sectional anatomy, computed tomography, and magnetic resonance imaging of the banded houndshark (Triakis scyllium)

Scientific Reports ◽

10.1038/s41598-020-80823-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Sang Wha Kim ◽

Adams Hei Long Yuen ◽

Cherry Tsz Ching Poon ◽

Joon Oh Hwang ◽

Chang Jun Lee ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

Soft Tissues ◽

Imaging Techniques ◽

Evolutionary Developmental Biology ◽

Phylogenetic Position ◽

Ct Scanner ◽

Resonance Imaging ◽

Cross Sectional

AbstractDue to their important phylogenetic position among extant vertebrates, sharks are an invaluable group in evolutionary developmental biology studies. A thorough understanding of shark anatomy is essential to facilitate these studies and documentation of this iconic taxon. With the increasing availability of cross-sectional imaging techniques, the complicated anatomy of both cartilaginous and soft tissues can be analyzed non-invasively, quickly, and accurately. The aim of this study is to provide a detailed anatomical description of the normal banded houndshark (Triakis scyllium) using computed tomography (CT) and magnetic resonance imaging (MRI) along with cryosection images. Three banded houndsharks were scanned using a 64-detector row spiral CT scanner and a 3 T MRI scanner. All images were digitally stored and assessed using open-source Digital Imaging and Communications in Medicine viewer software in the transverse, sagittal, and dorsal dimensions. The banded houndshark cadavers were then cryosectioned at approximately 1-cm intervals. Corresponding transverse cryosection images were chosen to identify the best anatomical correlations for transverse CT and MRI images. The resulting images provided excellent detail of the major anatomical structures of the banded houndshark. The illustrations in the present study could be considered as a useful reference for interpretation of normal and pathological imaging studies of sharks.

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A novel approach for Jatropha curcas seed health analysis based on multispectral and resonance imaging techniques

Industrial Crops and Products ◽

10.1016/j.indcrop.2020.113186 ◽

2021 ◽

Vol 161 ◽

pp. 113186

Author(s):

Clíssia Barboza da Silva ◽

Vitor de Jesus Martins Bianchini ◽

André Dantas de Medeiros ◽

Maria Heloisa Duarte de Moraes ◽

Agide Gimenez Marassi ◽

...

Keyword(s):

Jatropha Curcas ◽

Imaging Techniques ◽

Resonance Imaging ◽

Novel Approach ◽

Seed Health

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High-Resolution Magnetic Resonance Imaging of the Human Median Nerve

Neurorehabilitation and Neural Repair ◽

10.1177/0888439004267074 ◽

2004 ◽

Vol 18 (2) ◽

pp. 80-87 ◽

Cited By ~ 11

Author(s):

Archie Heddings ◽

Mehmet Bilgen ◽

Randolph Nudo ◽

Bruce Toby ◽

Terence McIff ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

High Resolution ◽

Peripheral Nerve ◽

Median Nerve ◽

Ex Vivo ◽

Imaging Techniques ◽

Proton Density ◽

Resonance Imaging ◽

Imaging Protocols

Objectives. It is widely accepted that peripheral nerve repairs performed within 6 weeks of injury have much better outcomes than those performed at later dates. However, there is no diagnostic technique that can determine if a traumatic peripheral nerve injury requires surgical intervention in the early postinjury phase. The objective of this article was to determine whether novel, noninvasive magnetic resonance imaging techniques could demonstrate the microstructure of human peripheral nerves that is necessary for determining prognosis and determining if surgery is indicated following traumatic injury. Methods. Ex vivo magnetic resonance imaging protocols were developed on a 9.4-T research scanner using spin-echo proton density and gradient-echo imaging sequences and a specially designed, inductively coupled radio frequency coil. These imaging protocols were applied to in situ imaging of the human median nerve in 4 fresh-frozen cadaver arms. Results. Noninvasive high-resolution images of the human median nerve were obtained. Structures in the nerve that were observed included fascicles, interfascicular epineurium, perineurium, and intrafascicular septations. Conclusion. Application of these imaging techniques to clinical scanners could provide physicians with a tool that is capable of grading the severity of nerve injuries and providing indications for surgery in the early postinjury phase.

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