Axis (C2)
Axis · Čepovec (C2)
Skeleton
Looks like
The second vertebra, with an upward tooth-like peg the atlas pivots around.
What it does
Lets the head turn side to side.
Keeping it well
Its peg often breaks in falls in older people; neck pain after a fall needs imaging even without weakness.
Related conditions
- Acromegaly
- Fractures
- Fragility fracture
- Frailty & falls in older age
- Hyperparathyroidism
- Neck pain and cervical spondylosis
- Osteogenesis imperfecta (brittle bone disease)
- Osteomalacia & rickets
- Osteomyelitis (bone infection)
- Osteoporosis
- Paget's disease of bone
- Sarcoma
- Vitamin B1, C and other deficiencies
- Vitamin D deficiency
- Whiplash
- Wry neck (torticollis)