Related Experiment Video
Updated: Jan 24, 2026

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
Published on: April 18, 2019
MRI anatomy and pathology of the anal canal
David B Erlichman1, Devaraju Kanmaniraja1, Mariya Kobi1
1Department of Radiology, Montefiore Medical Center, Bronx, New York, USA.
Abstract:
The normal function of the anal sphincter complex is crucial for quality of life, as it is the mechanism by which fecal continence is maintained. Additionally, the anal sphincter complex is an integral part of the coordinated effort of defecation. As imaging plays an important role in assessment of pathologic conditions involving the anal region, understanding the normal anatomy of the anal sphincter complex is important for correct image interpretation and accurate diagnosis. This review discusses the anatomy and function of the anal sphincter complex, important technical considerations for MRI, and various inflammatory, infectious, and neoplastic processes, as well as pathologic structural conditions that affect the anal region. Level of Evidence: 5 Technical Efficacy Stage: 3 J. Magn. Reson. Imaging 2019;50:1018-1032.
Related Concept Videos
Psychosexual Stages of Personality: Anal
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
Anatomy of the Gastrointestinal System
Here's a detailed walkthrough of this complex system:
Anatomy of the Eyeball
Anatomy of the Heart
Anatomy of Chloroplasts

