Biomaterial Database

Ganglions and ganglionic neurons in the cat's larynx. 1993

Y Yoshida, and T Shimazaki, and Y Tanaka, and M Hirano

Department of Otorhinolaryngology and Head and Neck Surgery, School of Medicine, Kurume University, Japan.

Localization, projections and role of ganglia and ganglionic neurons in the laryngeal framework were demonstrated in cats. Six to 8 large size ganglia containing 50 to 80 ganglionic neurons per ganglion in the paraglottic space, 4 to 6 small ganglia involving 5 to 25 cells in each ganglion dorsal to the posterior cricoarytenoid muscle, and 1 to 3 small ganglia including 15 to 25 perikarya per ganglion around the inferior laryngeal nerve were observed. Each ganglion showed spindle shaped covering fibrous capsule. Ganglionic neurons totaling 600 to 800 were oval shaped with an average diameter of 25 microns. Projections of the ganglionic neurons to the superior cervical ganglion (SCG) and nodose ganglion (NG) through the ipsilateral internal branch of the superior laryngeal nerve and to periphery were detected. From the dorsal motor nucleus of vagus, SCG and NG, the ganglionic cells received projections ipsilaterally. On immunocytochemistry many vasoactive intestinal polypeptide (VIP)-immunoreactive (ir) neurons, some neuropeptide Y (NPY)- and tyrosine hydroxylase (TH)-ir neurons and a few substance P (SP)-ir cells were recognized in ganglions. VIP-, NPY-, TH-, SP-, and calcitonin gene-related peptide (CGRP)-ir fibers were also observed in and around vessels and glands. Following denervation, VIP-, NPY- and TH-ir neurons and fibers did not change. These results prove that laryngeal ganglionic neurons have endogenic autonomic, especially cholinergic nature and innervate vessels and glands.

UI	MeSH Term	Description	Entries
D007823	Laryngeal Nerves	Branches of the VAGUS NERVE. The superior laryngeal nerves originate near the nodose ganglion and separate into external branches, which supply motor fibers to the cricothyroid muscles, and internal branches, which carry sensory fibers. The RECURRENT LARYNGEAL NERVE originates more caudally and carries efferents to all muscles of the larynx except the cricothyroid. The laryngeal nerves and their various branches also carry sensory and autonomic fibers to the laryngeal, pharyngeal, tracheal, and cardiac regions.	Laryngeal Nerve, Superior,Laryngeal Nerve,Laryngeal Nerves, Superior,Nerve, Laryngeal,Nerve, Superior Laryngeal,Nerves, Laryngeal,Nerves, Superior Laryngeal,Superior Laryngeal Nerve,Superior Laryngeal Nerves
D009434	Neural Pathways	Neural tracts connecting one part of the nervous system with another.	Neural Interconnections,Interconnection, Neural,Interconnections, Neural,Neural Interconnection,Neural Pathway,Pathway, Neural,Pathways, Neural
D009474	Neurons	The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.	Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D009479	Neuropeptides	Peptides released by NEURONS as intercellular messengers. Many neuropeptides are also hormones released by non-neuronal cells.	Neuropeptide
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D005726	Ganglia, Parasympathetic	Ganglia of the parasympathetic nervous system, including the ciliary, pterygopalatine, submandibular, and otic ganglia in the cranial region and intrinsic (terminal) ganglia associated with target organs in the thorax and abdomen.	Parasympathetic Ganglia,Ciliary Ganglion,Ganglion, Parasympathetic,Otic Ganglia,Pterygopalatine Ganglia,Submandibular Ganglia,Ciliary Ganglions,Ganglia, Otic,Ganglia, Pterygopalatine,Ganglia, Submandibular,Ganglias, Otic,Ganglias, Pterygopalatine,Ganglias, Submandibular,Ganglion, Ciliary,Ganglions, Ciliary,Otic Ganglias,Parasympathetic Ganglion,Pterygopalatine Ganglias,Submandibular Ganglias
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia