| C5 | fifth cervical nerve; fifth cervical vertebra; fifth component of complement |
|---|---|
| C6 | sixth cervical nerve; sixth cervical vertebra; sixth component of complement |
| C7 | seventh cervical nerve; seventh cervical vertebra; seventh component of complement |
| CV | cardiac volume; cardiovascular; carotenoid vesicle; cell volume; central venous; cephalic vein; cere... |
| D1 | diagonal one; first dorsal vertebra |