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                                                Testis (labels) - illustration
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                                                1 Epididymis  
2 Head of epididymis  
3 Lobules of epididymis  
4 Body of epididymis  
5 Tail of epididymis  
6 Duct of epididymis  
7 Deferent duct (ductus deferens or vas deferens) 
 
SEER Training Modules, Anatomy of the Testes. U.S. National Institutes of Health, National Cancer Institute.  
https://training.seer.cancer.gov/testicular/anatomy/ 
 
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