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Sigmoidoscopy
Sigmoidoscopy Looking into the sigmoid colon and rectum with a flexible or rigid tube, called a sigmoidoscope.
RELATED TERMS--------------------------------------
Sigmoid
S-shaped.
Colon
Another name for the large intestine. The section of the large intestine extending from the cecum to the rectum. An adult colon is approximately five to six feet in length and is responsible for absorbing water and forming, storing and expelling waste.
Rectum
An 8-inch chamber connected to the large intestine that receives solid waste (feces) from the descending colon to be expelled from the body. The rectum connects the colon to the anus. It is the rectum's job to receive stool from the colon, to let the person know that there is stool to be evacuated, and to hold the stool until evacuation happens.
SIMILAR TERMS--------------------------------------
Sigmoid
S-shaped.
Sigmoid colon
The lower part of the colon that empties into the rectum.
PREVIOUS AND NEXT TERMS--------------------------------------
Short gut syndrome
See short bowel syndrome.
Shunt
A connector to allow blood flow between two locations.
Shwachman's syndrome
A digestive and respiratory disorder of children. Certain digestive enzymes are missing and white blood cells are few. Symptoms may include diarrhea and short stature.
Silent ischemia
Ischemia not accompanied by chest pain.
Sigmoid colon
The lower part of the colon that empties into the rectum.
Sigmoidoscopy
Squamous intraepithelial lesion (SIL)
Like CIN, SIL is a term used to classify the degree of precancerous change in cells of the cervix in a condition called cervical dysplasia.
Sinus
Paranasal sinuses. Air cavities within the facial bones, lined by mucous membranes similar to those in other parts of the airways.
Sinus node
The cells that produce the electrical impulses that cause the heart to contract.
Sitz bath
A special plastic tub. A person sits in a few inches of warm water to help relieve discomfort of hemorrhoids or anal fissures.
Small bowel enema
X-rays of the small intestine taken as barium liquid passes through the organ. Also called small bowel follow-through. See also lower GI series.
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