Jejunal
Jejunal
Jejunal (pronunciation: jeh-JOO-nuhl) is an adjective that pertains to the jejunum, the middle section of the small intestine in humans and higher vertebrates, including mammals.
Etymology
The term "jejunal" is derived from the Latin word "jejunus," which means "fasting" or "empty." This is because, during dissections, the jejunum was often found to be empty.
Anatomy
The jejunum is the second part of the small intestine, located between the duodenum and the ileum. It is responsible for the absorption of nutrients from food that has been broken down in the stomach and duodenum. The inner surface of the jejunum is covered in folds called plicae circulares, which increase the surface area for absorption.
Related Terms
- Jejunostomy: A surgical operation to create an opening (stoma) in the jejunum, usually for the insertion of a feeding tube.
- Jejunitis: Inflammation of the jejunum, which can cause abdominal pain, diarrhea, and malabsorption of nutrients.
- Jejunoileitis: A condition characterized by inflammation of the jejunum and ileum, often associated with Crohn's disease.
- Jejunectomy: Surgical removal of a part of the jejunum, usually due to conditions like cancer or injury.
See Also
External links
- Medical encyclopedia article on Jejunal
- Wikipedia's article - Jejunal
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