
Flexor Digitorum Profundus Muscle
Primary Actions of the Flexor Digitorum Profundus
1. Flexion of the digits at the proximal interphalangeal joints
Agonists:
- Flexor Digitorum Superficialis
Antagonists:
- Lumbricals
- Dorsal Interossei
- Palmar Interossei
- Extensor Digitorum
- Extensor Indicis (second digit)
- Extensor Digiti Minimi (fifth digit)
2. Flexion of the digits at the distal interphalangeal joints
Agonists: None
Antagonists:
- Lumbricals
- Dorsal Interossei
- Palmar Interossei
- Extensor Digitorum
- Extensor Indicis (second digit)
- Extensor Digiti Minimi (fifth digit)
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Secondary Actions of the Flexor Digitorum Profundus
1. Assists with flexion of the digits at the metacarpophalangeal joints
Agonists:
- Flexor Digitorum Superficialis
- Dorsal Interossei
- Flexor Digiti Minimi (fifth digit)
- Palmar Interossei
- Lumbricals
Antagonists:
- Extensor Digitorum
- Extensor Indicis
- Extensor Digiti Minimi
2. Assists with flexion of the wrist
Agonists:
- Flexor Carpi Radialis
- Palmaris Longus
- Flexor Carpi Ulnaris
Antagonists:
- Extensor Carpi Radialis Longus
- Extensor Carpi Radialis Brevis
- Extensor Carpi Ulnaris
Information about cause and effect of Flexor Digitorum Profundus pain: Flexor Digitorum Profundus Muscle: Twitching Fingers, Hand Finger Pain