Axis (C2) vs Kidneys
| Property | Axis (C2) | Kidneys |
|---|---|---|
| Latin Name | Axis | Renes |
| Type | Bone | Organ |
| Body System | Skeletal | Urinary |
| Body Region | Spine | Abdomen |
| Function | The second cervical vertebra that provides a pivot point for rotation of the head. The dens (odontoid process) projects superiorly and acts as the axis around which the atlas rotates. | Filter approximately 180 liters of blood daily, producing 1-2 liters of urine. Regulate fluid balance, electrolyte concentration, acid-base balance, and blood pressure. Produce erythropoietin and activate vitamin D. |
| Clinical Significance | Odontoid fractures are common cervical spine injuries, especially in elderly patients. Hangman's fracture involves bilateral pars interarticularis fractures of C2. Atlantoaxial instability occurs in rheumatoid arthritis and Down syndrome. | Chronic kidney disease affects millions worldwide and may progress to end-stage renal disease requiring dialysis or transplantation. Kidney stones (nephrolithiasis) cause severe pain. Renal cell carcinoma is the most common … |
| FMA ID | 12520 | 7203 |
Full structure pages
Axis (C2)
Axis
The second cervical vertebra, the axis provides the pivot around which the head rotates. Its defining feature is the dens, or odontoid process, a tooth-like projection that extends superiorly from the body to articulate with …