The kidneys are located just below the rib cage, on either side of the spine. More specifically, they sit in the abdominal cavity, retroperitoneally (behind the peritoneum, the lining of the abdominal cavity).
Here's a more detailed breakdown:
- Position: The kidneys are situated high in the abdominal cavity.
- Laterality: One kidney is on the left side of the spine, and the other is on the right.
- Vertical Position: They are positioned just below the rib cage, making them partially protected by the ribs.
- Asymmetry: The right kidney is typically slightly lower than the left kidney. This is due to the presence of the liver on the right side of the body, which takes up space and pushes the right kidney down a bit.
- Dimensions: While individual variations exist, a typical kidney is about 12 cm long, 6 cm wide, and 3 cm thick.
In summary, think of the kidneys as residing in the back of your abdomen, towards your sides, nestled just beneath the protection of your lower ribs.