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Título
Reciprocal modulation of tyrosine hydroxylasea activity in rat carotid body
Año del Documento
1979
Editorial
Elsevier
Documento Fuente
Brain Resarch, 172 (1972) 572-576
Abstract
The carotid body is an arterial chemoreceptor organ responsive to blood levels
of pO2, pCOe and pH 13. The parenchymal tissue of the carotid body is composed
mainly of two cell types: the glomus or Type I cells, which are disposed together in
groups or glomeruli, and the sustentacular or Type II cells, which appear as glial-like
elements enclosing the glomeruli in capsular fashion 3,4. The Type I cells, which have
abundant dense-cored vesicles and are known to contain catecholaminesl, 2,11,15,
receive a sensory innervation from afferent fibers of the carotid sinus nerve 3. Recent
studies have also shown the presence of reciprocal synapses at these junctions between
afferent nerve terminals and Type I cells TM. In addition, these cells receive an efferent
innervation from both preganglionic and postganglionic sympathetic fibers which
reach the carotid body from the superior cervical ganglion 18
Materias (normalizadas)
Neurofisiología
ISSN
0006-8993
Revisión por pares
SI
Idioma
eng
Derechos
openAccess
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