anal cushions
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a·nal cushions
vascular prominences formed by clusters of normally sacculated veins of the superior rectal venous plexus, fed by arteriovenous anastomoses that cause their engorgement; are usually found to lie laterally on the left and antero- and posterolaterally on the right side of the anal canal.
Synonym(s): cavernous bodies of anal canal, corpora cavernosa recti, hemorrhoidal cushions, threshold pads of anal canal
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