Location of the Liver
The liver is a crucial organ situated primarily in the right hypochondrium and part of the epigastrium. It extends under the ribcage, stretching from the fifth rib on the right side to the fifth intercostal space on the left side. This strategic positioning allows the liver to perform its vital functions effectively.
Primary Position
- Right Hypochondrium: This is the main area where the liver resides. It is located beneath the ribs, providing protection and support.
- Epigastrium: The liver also occupies part of this central upper region of the abdomen, contributing to its accessibility for various physiological processes.
Extension Under the Ribcage
- From Fifth Rib on Right Side: The liver starts at the fifth rib on the right side of the body, indicating its upper boundary.
- To Fifth Intercostal Space on Left Side: It extends to the fifth intercostal space on the left side, marking its lateral reach across the upper abdomen.
Borders
- Upper Border: The upper border of the liver aligns with the level of the xiphisternal joint, which is the junction between the xiphoid process and the sternum.
- Inferior Border: The inferior border of the liver is at the level of the transpyloric plane, an imaginary horizontal plane that passes through the pylorus of the stomach, typically located midway between the jugular notch and the upper border of the pubic symphysis.
Understanding the liver's location is fundamental for comprehending its functions and the impact it has on various bodily processes. This knowledge also aids in diagnosing and treating liver-related conditions effectively.
For more details, you can explore the Introduction to Liver Anatomy and Shape, Size, and Color of the Liver pages.