Anal sphincter muscles


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Anal sphincter muscles

Muscles that control the opening and closing of the anus.
Mentioned in: Endorectal Ultrasound
References in periodicals archive ?
Poor diet, frequent diarrhea or constipation, weakening of anal sphincter muscles and damage to the rectum or surrounding nerves," she said.
Needle electromyography (EMG) is a better way to assess this, but the test is difficult to perform on anal sphincter muscles, because these muscles are always contracted to maintain continence.
The Acticon Neosphincter is an implantable prosthesis designed to simulate the natural function of the anal sphincter muscles, giving the patient control over bowel movements.
FI can have several causes including damage to the anal sphincter muscles, damage to the nerves of the anal sphincter muscles or rectum, and loss of storage capacity in the rectum.
But it's not for everyone with fecal incontinence, as it requires intact internal anal sphincter muscles, said Dr.