Emmanouil Skouras,
Stoyan Pavlov,
Habib Bendella,
Doychin N. Angelov

2013

Functional, Electrophysiological and Morphological Proofs

Recovery of mimic function after facial nerve transection is poor: the successful regrowth of axotomized motoneurons to their targets is compromised by (1) poor axonal navigation and excessive collateral branching, (2) abnormal exchange of nerve impulses between adjacent regrowing axons, and (3) insufficient synaptic input to facial motoneurons. As a result, axotomized motoneurons get hyperexcitable and unable to discharge.