The transpyloric plane , also known as Addison's Plane , is an imaginary horizontal plane, situated midway between the suprasternal position of the manubrium and the upper pubic symphysis margin at the level of the first lumbar vertebra, L1. It lies approximately the width of the hand below the xiphisternum or in the middle between the xiphisternum and the umbilicus. The aircraft in most cases cuts through gastric pylorus, the tip of the ninth rib cartilage and the lower border of the first lumbar vertebra.
Video Transpyloric plane
Cross structure
The transpiloric plane is clinically well-known for passing through some important abdominal structures. It also divides the supracolic and infracolic compartments, with the liver, spleen and fundal stomach above it and the small intestine and colon underneath.
Lumbar vertebrae and spinal cord
The first lumbar vertebra lies at the level of the transpyloric plane. Although the con's medullary, the spinal cord end, which is understood to terminate at the transpyloric plane level, there is significant variability. Up to 40% of people have spinal cord under the transpyloric plane.
Stomach
The transpiloric plane passes through the pylorus of the stomach, regardless of it [pylorus] is delayed by a smaller and larger and relatively moving omentum.
Duodenum
The horizontal portion of the duodenum tilts upward to the left of the vertical midline, following which the vertical portion rises from the duodenum reaches the transpiloric plane. It ends at the junction duodenojejalal, which is located about 2.5 cm to the left of the center line and just below the transpiloric plane.
Pancreas
The pancreatic neck is located in the transpyloric plane, while the body and tail are on the left and above.
Gallbladder
Fundus of the gallbladder project from the inferior border of the liver at the junction of the transpyloric plane and the lateral lateral diameter.
Kidney
Although the right kidney is lying 1 cm lower than the left (just below and left just above the plane), to be practical, surface signs are taken in the same way. Renal loins on the left and right are taken as 5cm from the vertical midline and are in the transpiloric plane.
Vasculature
The superior mesenteric artery arises from the aorta at the transpyloric plane level and arises between the head and neck of the pancreas.
The superior mesenteric veins join the vein of the limb to form the portal vein at the transpyloric plane level.
Spleen
The lower limit of the spleen is located near the transpyloric plane.
Other structures
- left and right colic arch
- the transverse mesocolon root.
- cisterna chyli (which flows into the thoracic ducts).
Maps Transpyloric plane
History
The transpiloric plane is associated with a three dimensional stomach mapping set up at over 10,000 completed measurements on 40 corpses, undertaken by Viscount Addison surgeons at the turn of the 20th century.
Addison reports his findings in a paper entitled, "On the anatomical topography of the abdominal viscera in humans, especially the gastro-intestinal tract" where it sets the baseline for abdominal anatomy based on the arrangement of Earth maps. Using the suprasternal position as the North Pole of the stem, and the upper limit of the pubic symphysis as the South Pole, he draws a vertical line connecting these two points as his meridian line. At the midpoint of the meridian, he then draws a perpendicular line corresponding to the Equator. When this plane crossed the pylorus, he called it a transpiloric plane.
Images
See also
- Transtubercular plane
References
This article combines text in the public domain of page 1315 of the 20th edition of Gray's Anatomy (1918)
External links
- Aircraft from the trunk.
Source of the article : Wikipedia
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