Anatom3DOblique head of adductor pollicis
Caput obliquum musculi adductoris pollicis · Šikmá hlava přitahovače palce
Muscles
Looks like
The upper head of adductor pollicis, from the wrist bones and the bases of the 2nd–3rd hand bones.
What it does
Pulls the thumb toward the palm, key in a strong pinch.
Keeping it well
Weakness makes the thumb tip bend when pinching paper (Froment's sign), a sign of ulnar nerve damage.
Related conditions
- Botulism
- Carpal tunnel syndrome
- De Quervain's tenosynovitis
- Dupuytren's contracture & trigger finger
- Fibromyalgia
- Frailty & falls in older age
- Ganglion cyst
- Heat exhaustion & heatstroke
- Juvenile idiopathic arthritis
- Malnutrition & refeeding syndrome
- Muscular dystrophy
- Polymyalgia rheumatica
- Pseudogout (calcium pyrophosphate disease)
- Raynaud's phenomenon
- Repetitive strain & overuse injury
- Rhabdomyolysis
- Rheumatoid arthritis
- Sarcoma
- Sarcopenia
- Tetanus