Estimate of size and total number of neurons in superior cervical ganglion of rat, capybara and horse

Anatomy and Embryology
A A C M RibeiroG Gabella

Abstract

The superior (cranial) cervical ganglion was investigated by light microscopy in adult rats, capybaras (Hydrochaeris hydrochaeris) and horses. The ganglia were vascularly perfused, embedded in resin and cut into semi-thin sections. An unbiased stereological procedure (disector method) was used to estimate ganglion neuron size, total number of ganglion neurons, neuronal density. The volume of the ganglion was 0.5 mm3 in rats, 226 mm3 in capybaras and 412 mm3 in horses. The total number of neurons per ganglion was 18,800, 1,520,000 and 3,390,000 and the number of neurons per cubic millimetre was 36,700, 7,000 and 8,250 in rats, capybaras and horses, respectively. The average neuronal size (area of the largest sectional profile of a neuron) was 358, 982 and 800 microm2, and the percentage of volume occupied by neurons was 33, 21 and 17% in rats, capybaras and horses, respectively. When comparing the three species (average body weight: 200 g, 40 kg and 200 kg), most of the neuronal quantitative parameters change in line with the variation of body weight. However, the average neuronal size in the capybara deviates from this pattern in being larger than that of in the horse. The rat presented great interindividual variability in all ...Continue Reading

Citations

Sep 29, 2006·Anatomy and Embryology·Antonio Augusto Coppi Maciel Ribeiro
Jan 4, 2012·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Aliny A B Lobo LaddAntonio A Coppi
Feb 22, 2011·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Emerson T FiorettoAntonio A Coppi
Jul 20, 2010·Journal of Neuroscience Methods·Luis Emilio SavastanoEstela Maris Muñoz
May 21, 2009·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Cauê Pereira ToscanoAntonio Augusto Coppi Maciel Ribeiro
Nov 26, 2008·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Luciana Maria Bigaram AbrahãoAntonio Augusto Coppi Maciel Ribeiro
May 30, 2009·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Samanta Rios MeloAntonio Augusto C M Ribeiro
Dec 31, 2008·Journal of Neuroscience Research·Renato Albuquerque de Oliveira CavalcantiAntonio Augusto Coppi Maciel Ribeiro
Dec 12, 2013·Journal of Anatomy·Julia SchipkeChristian Mühlfeld
Apr 18, 2016·Journal of Pharmacological and Toxicological Methods·Matthew R ZahnerChris J Somps
Sep 6, 2005·The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology·Karina Martinez GagliardoAntonio Augusto Coppi Maciel Ribeiro

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