Biomaterial Database

Anatomical evidence for a bi-neuronal pathway connecting the nucleus tractus solitarius to caudal ventrolateral medulla to rostral ventrolateral medulla in the rat. 1996

D Yu, and F J Gordon

Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA.

Using tract tracing techniques and dual-color histochemistry, this study investigated connections between the nucleus tractus solitarius (NTS), caudal ventrolateral medulla (CVLM), and rostral ventrolateral medulla (RVLM) in the rat. The anterograde tracer biotinylated dextran amine (BDA) was deposited into the NTS. The retrograde tracer Fluoro-Gold was deposited into the RVLM. In the CVLM, Fluoro-Gold-labeled cells were found intermingled with anterogradely labeled fibers coursing from the NTS. BDA-labeled axons, varicosities, and boutons were observed in close apposition to retrogradely labeled neurons in the CVLM. These data provide anatomical evidence for a bi-neuronal pathway from NTS to CVLM to RVLM; and support the hypothesis that these connections may comprise the medullary baroreceptor reflex pathway.

UI	MeSH Term	Description	Entries
D008526	Medulla Oblongata	The lower portion of the BRAIN STEM. It is inferior to the PONS and anterior to the CEREBELLUM. Medulla oblongata serves as a relay station between the brain and the spinal cord, and contains centers for regulating respiratory, vasomotor, cardiac, and reflex activities.	Accessory Cuneate Nucleus,Ambiguous Nucleus,Arcuate Nucleus of the Medulla,Arcuate Nucleus-1,External Cuneate Nucleus,Lateral Cuneate Nucleus,Nucleus Ambiguus,Ambiguus, Nucleus,Arcuate Nucleus 1,Arcuate Nucleus-1s,Cuneate Nucleus, Accessory,Cuneate Nucleus, External,Cuneate Nucleus, Lateral,Medulla Oblongatas,Nucleus, Accessory Cuneate,Nucleus, Ambiguous,Nucleus, External Cuneate,Nucleus, Lateral Cuneate
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
D002421	Caudate Nucleus	Elongated gray mass of the neostriatum located adjacent to the lateral ventricle of the brain.	Caudatus,Nucleus Caudatus,Caudatus, Nucleus,Nucleus, Caudate
D006651	Histocytochemistry	Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods.	Cytochemistry
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
D017207	Rats, Sprague-Dawley	A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.	Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D017552	Solitary Nucleus	GRAY MATTER located in the dorsomedial part of the MEDULLA OBLONGATA associated with the solitary tract. The solitary nucleus receives inputs from most organ systems including the terminations of the facial, glossopharyngeal, and vagus nerves. It is a major coordinator of AUTONOMIC NERVOUS SYSTEM regulation of cardiovascular, respiratory, gustatory, gastrointestinal, and chemoreceptive aspects of HOMEOSTASIS. The solitary nucleus is also notable for the large number of NEUROTRANSMITTERS which are found therein.	Nucleus Solitarius,Nuclei Tractus Solitarii,Nucleus Tractus Solitarii,Nucleus of Solitary Tract,Nucleus of Tractus Solitarius,Nucleus of the Solitary Tract,Solitary Nuclear Complex,Solitary Tract Nucleus,Complex, Solitary Nuclear,Complices, Solitary Nuclear,Nuclear Complex, Solitary,Nuclear Complices, Solitary,Nuclei Tractus Solitarius,Nucleus Tractus Solitarius,Nucleus, Solitary,Nucleus, Solitary Tract,Solitarii, Nuclei Tractus,Solitarius Nucleus, Tractus,Solitarius, Nuclei Tractus,Solitary Nuclear Complices,Tractus Solitarii, Nuclei,Tractus Solitarius Nucleus,Tractus Solitarius, Nuclei
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus