Stock medical and surgical illustrations

Internal and External Anal Sphincters


Internal and External Anal Sphincters – Medical illustration
Medical artwork displaying Internal and External Anal Sphincters as separate muscle groups; green layer represents the Internal sphincter, and red layer is the Sphincter ani externus muscle group. Sphincter muscles function in tonic contraction (A) and full contraction occluding the anal aperture (B).



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Anal sphincters – Anatomical artwork
Computer generated medical illustration depicting in two stages how  the Internal anal sphincter helps the Sphincter ani externus to occlude the anal aperture and aids in the expulsion of the feces.   
Low res for the Web and iPads: 1400x917px, 72 DPI, 508Kb: $AUS450  
High Res for prints: 35×22.9cm, 300DPI, 33.8Mb: $AUS750
(plus GST in Australia)


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