Functional Rehab Academy
Opponens pollicis
Muscle origin
Tubercle of trapezium bone and flexor retinaculum
Muscle insertion
Radial border of metacarpal bone 1
Muscle function
Control of Carpometacarpal joint and opposition of thumb
Nerve innervation
C8-T1
Lovett reactor T9-10
Myofascial lines
Primary inhibatory muscles
Related joints: Carpometacarpal joint of thumb
The end of pinky and thumb is placed together. Stabilize the 4-5th metacarpal bone with one hand and the try to break the thumb away from the pinky by applying pressure on the medial side of the 1st metacarpal bone with the other hand.
Functional anatomy for
Opponens pollicis
Organ relationship: Symp T1-L2 / Parasymp CX (Vagus), S2-4
- Heart (FA)
- Symp – T1-6 (Cardiac plexus)
- Parasymp – CX (Vagus)
- Stomach (AK)
- Symp – T5-9 (Celiac plexus)
- Parasymp – CX (Vagus)
- Reproductive organs (AK)
- Symp – T10-L2 (Inferior Hypogastric, Ovarian and Testicular plexus)
- Parasymp – S2-4 (Sacral plexus)
- Spleen (AK)
- Symp – T5-T9 (Celiac plexus)
- Parasymp – None (CX minimal)
Synergists