Anatom3DDistal phalanx of left ring finger
Phalanx distalis digiti anularis manus sinistrae · Koncový článek levého prsteníku
Skeleton
Looks like
The tip bone of the ring finger, under the nail.
What it does
Supports the pad and nail; the deep flexor tendon inserts on its base.
Keeping it well
Jersey finger (grabbing a shirt) tears the deep tendon off its base — inability to bend the tip needs surgery within days.
Related conditions
- Acromegaly
- Carpal tunnel syndrome
- De Quervain's tenosynovitis
- Dupuytren's contracture & trigger finger
- Fractures
- Fragility fracture
- Frailty & falls in older age
- Ganglion cyst
- Hyperparathyroidism
- Juvenile idiopathic arthritis
- Osteogenesis imperfecta (brittle bone disease)
- Osteomalacia & rickets
- Osteomyelitis (bone infection)
- Osteoporosis
- Paget's disease of bone
- Pseudogout (calcium pyrophosphate disease)
- Psoriatic arthritis
- Raynaud's phenomenon
- Repetitive strain & overuse injury
- Rheumatoid arthritis
- Sarcoma
- Vitamin B1, C and other deficiencies
- Vitamin D deficiency