Biomaterial Database

Localization of sensory neurons traversing the stellate ganglion of the cat. 1978

B J Oldfield, and E M McLachlan

The distribution of sensory cells whose axons traverse the stellate ganglion and project via sympathetic cardiac nerves to the heart of the cat has been examined quantitatively. Horseradish peroxidase (HRP) injected at multiple sites in the right stellate ganglion, or applied to the middle cardiac nerve, labelled small numbers of cells in the thoracic dorsal root ganglia (DRG) from T1 to T8. These cells were most numerous between T2 and T5 and were consistently small (less than 40 micrometer) relative to other cells in the DRG. When HRP was applied to middle cardiac nerves, the numbers of labelled sensory cells always exceeded the numbers of myelinated axons counted in the same nerves from other cats. It is concluded that the distribution of the cells of cardiac sensory fibers is more extensive within thoracic DRG than has been previously reported, and it is suggested that such fibres travelling in the sympathetic cardiac nerves may be either myelinated or unmyelinated.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009413	Nerve Fibers, Myelinated	A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the myelinated nerve fibers are completely encased in a MYELIN SHEATH. They are fibers of relatively large and varied diameters. Their NEURAL CONDUCTION rates are faster than those of the unmyelinated nerve fibers (NERVE FIBERS, UNMYELINATED). Myelinated nerve fibers are present in somatic and autonomic nerves.	A Fibers,B Fibers,Fiber, Myelinated Nerve,Fibers, Myelinated Nerve,Myelinated Nerve Fiber,Myelinated Nerve Fibers,Nerve Fiber, Myelinated
D009475	Neurons, Afferent	Neurons which conduct NERVE IMPULSES to the CENTRAL NERVOUS SYSTEM.	Afferent Neurons,Afferent Neuron,Neuron, Afferent
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
D002452	Cell Count	The number of CELLS of a specific kind, usually measured per unit volume or area of sample.	Cell Density,Cell Number,Cell Counts,Cell Densities,Cell Numbers,Count, Cell,Counts, Cell,Densities, Cell,Density, Cell,Number, Cell,Numbers, Cell
D005260	Female		Females
D005727	Ganglia, Spinal	Sensory ganglia located on the dorsal spinal roots within the vertebral column. The spinal ganglion cells are pseudounipolar. The single primary branch bifurcates sending a peripheral process to carry sensory information from the periphery and a central branch which relays that information to the spinal cord or brain.	Dorsal Root Ganglia,Spinal Ganglia,Dorsal Root Ganglion,Ganglion, Spinal,Ganglia, Dorsal Root,Ganglion, Dorsal Root,Spinal Ganglion
D006321	Heart	The hollow, muscular organ that maintains the circulation of the blood.	Hearts
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
D013233	Stellate Ganglion	A paravertebral sympathetic ganglion formed by the fusion of the inferior cervical and first thoracic ganglia.	Cervicothoracic Ganglion,Cervicothoracic Ganglia,Stellate Ganglia,Ganglia, Cervicothoracic,Ganglia, Stellate,Ganglias, Stellate,Ganglion, Cervicothoracic,Ganglion, Stellate,Stellate Ganglias