
Opponens Pollicis O, I, A
Primary Actions of the Opponens Pollicis
1. Opposition of the thumb toward the digits
Agonists:
- Abductor Pollicis Brevis
- Adductor Pollicis
- Flexor Pollicis Brevis
Antagonists:
- Extensor Pollicis Longus
- Extensor Pollicis Brevis
- Abductor Pollicis Longus
2. Flexion of the thumb at the carpometacarpal joint
Agonists:
- Adductor Pollicis
- Flexor Pollicis Longus
- Flexor Pollicis Brevis
Antagonists:
- Abductor Pollicis Longus
- Extensor Pollicis Brevis
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Information about cause and effect pain: Opponens Pollicis Pain and Symptoms