Fig. 1From: The effect of insulin-like growth factor 1 on the recovery of facial nerve function in a guinea pig model of facial palsyPreparing the guinea pig model of facial nerve palsy. a Exposing the facial nerve and the stylomastoid foramen. b Running of the facial nerve through the tympanic cavity. c Exposing facial nerve in the tympanic cavity by removing temporal bone around stylomastoid foramen. d Creating a compression injury by clamping the facial nerve using microforceps in the tympanic cavityBack to article page