Abductor digiti minimi of hand

Looks like

The surface muscle of the little finger side of the palm, from the pisiform bone to the little finger.

What it does

Spreads the little finger away from the others.

Keeping it well

Powered by the ulnar nerve; wasting here suggests nerve compression.

Related conditions

• Botulism
• Carpal tunnel syndrome
• Cubital 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