Transpyloric plane

Transpyloric Plane

The Transpyloric Plane (pronounced: trans-pie-lor-ic plane) is a significant anatomical landmark in the human body.

Etymology

The term "Transpyloric" is derived from the Greek words "trans" meaning across, and "pylorus" meaning gatekeeper, referring to the part of the stomach that connects to the duodenum.

Definition

The Transpyloric Plane, also known as Addison's Plane or Plane of Ludwig, is an imaginary horizontal plane that passes through the body at the level of the first lumbar vertebra. It is approximately halfway between the suprasternal notch and the top of the pubic symphysis, and often corresponds to the level of the umbilicus (navel).

Clinical Significance

The Transpyloric Plane is used as a reference point in medical examinations and surgical procedures. It marks the location of several important anatomical structures, including the pylorus of the stomach, the duodenum, the pancreas, the hila of the kidneys, and the origin of the superior mesenteric artery and portal vein.

Related Terms

Pylorus: The part of the stomach that connects to the duodenum.
Duodenum: The first part of the small intestine immediately beyond the stomach.
Pancreas: A large gland behind the stomach that secretes digestive enzymes into the duodenum.
Hila: The part of an organ where vessels and nerves enter and leave.
Superior Mesenteric Artery: A large artery that supplies blood to the small intestine.
Portal Vein: A large vein carrying blood from the digestive organs to the liver.