Vegetative innervation of the human vocal larynx

Background. Numerous publications have noted the piano of unequal‑muscular relations arising in process vocalization, and described intra‑laryngeal sensitive (afferent) motor (efferent) nerve endings. Pari estomp a significant part efferent pathways are vegetative fibers that control ulcer trophic state tissue substrate direct effect on muscles larynx, changing metabolism muscle cells. Objective: to analyze features innervation larynx area vocal folds sectional material. Materials methods. In study mucous membrane laryngeal muscles, we used material obtained studies 28 people who died as result injuries incompatible with life, opt cardiovascular insufficiency pneumonia at age 54–85 years, whom there were no life‑threatening ENT diseases. Adrenergic detected by Bjerklund method modified V.N. Shvalev N.I. Zhuchkova, cholinergic studied using Karnovsky–Roots based incubation sections solution specific substrate. Results. conductors, rule, use common ways penetration into under walker blood vessels nerves. Onyx localized reduce features. Autonomic structures located observed directly middle fibers. Conclusion. The abundance adrenergic endings, combining different structural elements single morphofunctional complex, is main influence nervous system over folded mechanism voice formation processes disorders various