The ampulla of rectum refers to a specific anatomical structure found in the lower part of the large intestine, known as the rectum. This section of the gastrointestinal system serves as the final segment of the digestive tract, responsible for storing and eliminating fecal matter before defecation.
The ampulla of rectum, also called the rectal ampulla, is a dilated or expanded portion of the rectum located just before the rectal sphincters. It is a temporary storage reservoir that receives and holds fecal matter until it is ready to be expelled from the body.
The ampulla of rectum possesses stretch receptors that detect the presence of stool and send signals to the brain, indicating the need for defecation. This triggers a reflex response, stimulating the urge to have a bowel movement.
Typically, the ampulla of rectum is elastic and can stretch to accommodate varying amounts of fecal material, ensuring effective storage without causing discomfort. However, in individuals with certain conditions like constipation or fecal impaction, this storage capacity can be affected, leading to difficulties passing stool.
Understanding the anatomy and function of the ampulla of rectum is crucial in the diagnosis and management of rectal disorders such as hemorrhoids, rectal cancer, or rectal prolapse. It forms an essential part of the overall digestive process and helps maintain regularity in bowel movements.
