Anatomic Variation

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Explore examples of how the body develops differently from standard anatomic configuration.
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Cardiovascular

Respiratory

Hematopoietic

Musculoskeletal

Gastrointestinal

Endocrine

Genitourinary

Integument

Nervous

 
Examples appear here:

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Aorta – ostia

Coronary arteries

Lobes

Spleen

Xiphoid

Cranial sutures

Small Intestine


  
  


 
 

Aorta – ostia

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Usual configuration
  
Dual superior mesenteric artery ostia
  
  
  

  
  
  

 
 
 
 
 
 
 
 
 
 

 
 

Coronary Arteries

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Usual configuration – right dominant
  
Left dominant system
  
  
  

  
  
  

 
 
 
 
 
 
 
 
 
 


 
 

Lobes

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Usual configuration
  
Two right lobes
(variant fissure configuration)
Two right lobes
(absent horizontal fissure)
  
  

  
  

 
 
 
 
 
 
 
 
 
 


 
 

Spleen

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Usual configuration
  
Accessory spleen
  
  
  

  
  
  

 
 
 
 
 
 
 
 
 
 


 
 

Xiphoid process

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Usual configuration
  
Bifid xiphoid process
  
  
  

  
  
  

 
 
 
 
 
 
 
 
 
 

 
 

Cranial sutures

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Usual configuration
  
Metopic (frontal) suture
  
  
  

  
  
  

 
 
 
 
 
 
 
 
 
 


 
 

Small intestine

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Usual configuration
  
Meckel’s diverticulum