Innervation Pattern of Intrinsic Laryngeal Musculature of the Rabbit

Abstract

The intrinsic laryngeal musculature of rabbit was studied using various neurohistological techniques. The vegetative and sensory nerve terminals are present in abundance, while the proprioceptors are seemingly absent. Furthermore, simple motor endplates, sometimes furnished with ultraexpansional fibers, complex end-plates, or ‘en grappe’ are described. Their abundance within a musculature lacking in muscle-spindles is indicative of a possible vicarious function.