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gave a detailed listing of muscle variations. These included the absence of muscles; muscles that were doubled; muscles that were divided into two or more parts; an increase or decrease in the origin or insertion of the muscle; and the joining to adjacent organs.
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features different from those that are typically described in the majority of individuals. Anatomical variations are categorized into three types including morphometric (size or shape), consistency (present or absent), and spatial
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Variations are seen as normal in the sense that they are found consistently among different individuals, are mostly without symptoms, and are termed anatomical variations rather than abnormalities.
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A very early paper published in 1898, presented anatomic variations to have a wide range and significance, and before the use of
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364:"Anatomical variants | Radiology Reference Article | Radiopaedia.org"
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but sometimes there are six, and sometimes there are four.
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technology, anatomic variations were mostly only found on
388:(6th ed.). McGraw-Hill Education. pp. 14–15.
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Some variations are found in different species such as
490:(Eighth ed.). Wolters Kluwer. p. 342.
99:, having more than the usual number of digits.
129:in the forearm is sometimes absent, as is the
92:techniques have defined many such variations.
437:"Diagnosis and Treatment of Discoid Meniscus"
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65:and may vary considerably between different
27:Difference between the anatomical structures
323:"The Significance of Anatomical Variations"
180:that can sometimes be swollen and painful.
61:Anatomical variations are mainly caused by
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42:is a presentation of body structure with
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140:is a variant that lies in front of the
192:are subject to anatomical variations.
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515:Atlas of human anatomical variations
441:Knee Surgery & Related Research
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327:Journal of Anatomy and Physiology
321:Cunningham, DJ (October 1898).
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109:List of anatomical variations
488:Clinically oriented anatomy
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245:Yammine, Kaissar (2014).
247:"Evidence-Based Anatomy"
221:Supernumerary body part
156:Usually there are five
386:Anatomy and Physiology
127:palmaris longus muscle
103:Variants of structures
40:anatomical variability
535:Anatomical variations
196:Clinical significance
144:and may show up on a
207:may be mistaken for
172:is a rare thickened
88:studies. The use of
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454:10.5792/ksrr.16.050
384:Saladin, K (2012).
308:"Anatomic variants"
203:small bones called
411:"Sternalis muscle"
226:Visible difference
209:avulsion fractures
73:, particularly in
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18:Anatomic variation
486:Moore, K (2018).
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251:Clinical Anatomy
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174:lateral meniscus
170:discoid meniscus
158:lumbar vertebrae
142:pectoralis major
138:sternalis muscle
131:plantaris muscle
55:or right/left).
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368:Radiopaedia
97:polydactyly
67:populations
524:Categories
232:References
178:knee joint
409:Garg, T.
271:0897-3806
201:Accessory
146:mammogram
473:27894171
349:17232348
289:24797314
215:See also
205:ossicles
63:genetics
49:proximal
530:Anatomy
464:5134787
340:1327970
280:4282349
176:in the
114:Muscles
90:imaging
86:cadaver
75:muscles
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184:Organs
164:Joints
119:Kopsch
71:organs
53:distal
190:lungs
152:Bones
82:X-ray
38:, or
492:ISBN
469:PMID
422:2019
390:ISBN
345:PMID
285:PMID
267:ISSN
188:The
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