RECTAL VALVE Meaning and
Definition
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A rectal valve is a specialized anatomical structure located within the rectum, which is a part of the large intestine. This valve serves as a functional barrier between the rectum and the anal canal, playing a crucial role in regulating the movement and evacuation of fecal matter from the body.
The rectal valve is a distinct fold of tissue positioned at the lower end of the rectum where it transitions into the anal canal. It forms a natural mechanical obstacle, preventing the involuntary or accidental release of stool. Essentially, the rectal valve helps maintain continence by temporarily sealing off the rectum to hold fecal matter until an appropriate time for defecation.
Additionally, the rectal valve contributes to the discrimination between solid and liquid stool. It allows liquid or gas to pass through while preventing the passage of solid feces in order to facilitate controlled bowel movements. This mechanism aids in the retention of semi-liquid or gaseous contents within the rectum, while allowing for easier expulsion of solid waste during defecation.
The rectal valve's function is essential for maintaining bowel control and preventing involuntary leakage of stool. Any dysfunction or damage to this valve can result in problems such as fecal incontinence or difficulty with defecation. Understanding the role of the rectal valve is crucial in the fields of anatomy, gastroenterology, and colorectal surgery.
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Plica transversalis recti.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for RECTAL VALVE
Etymology of RECTAL VALVE
The word "rectal" originates from the Latin word "rectum", which means "straight". The term "valve" comes from the Latin word "valva", which means "a folding door or leaf of a door". Therefore, the etymology of the term "rectal valve" is a combination of the Latin words "rectum" and "valva", referring to a fold or leaf-like structure found in the rectum.
