Opponens Pollicis (of the Thenar Eminence Group) – myofascial trigger points and their referral zones.
Thenar eminence group:
- abductor pollicis brevis
- flexor pollicis brevis
- opponens pollicis

Anterior view of a myofascial trigger point in the right-side opponens pollicis and its corresponding referral zone.