Efferent innervation of vestibular receptors in the cat: a radioautographic visualization.
A tritiated amino acid tracing method was used to test the hypothesis that a unilateral group of vestibular efferent neurons of the brain stem may present different innervation patterns to the sensory vestibular epithelia of the ipsi- and contralateral labyrinths. Densitometric analysis of labeled efferent endings suggested a heterogeneity of the efferent projections issuing from a unilateral predominated in the maculae utriculi and cristae ampullares of the semicircular canals. These findings are discussed as a function of other data related to efferent vestibular control.
D000818:Animals; D001345:Autoradiography; D002415:Cats; D007758:Ear, Inner / Q000294:innervation; D009476:Neurons, Efferent / Q000033:anatomy & histology*; D014722:Vestibule, Labyrinth / Q000294:innervation*