Meet Harry ! Of 'Tom, Dick and Harry' of the deep posterior compartment of the leg.
Flexor Hallucis Longus
ORIGIN: Distal 2/3 of the posterior fibula and the distal 2/3 of the interosseous membrane
INSERTION: Distal phalanx of the big toe
Flexor Hallucis Longus Muscle Actions:
a )flexes the big toe (#1)
a) Plantar Flexion of the foot at the ankle joint
b) inversion of the foot at the sub-talar joint
And that's Harry! The final posterior leg muscle of ' Tom Dick and Harry' group.
Those three are closest to the bone, there are more lower leg muscles to cover stayyyy tuned!