Comparative Anatomy of the Peripheral Nerves

Martinez-Pereira, Malcon Andrei; Zancan, Denise Maria

doi:10.1016/b978-0-12-410390-0.00005-6

Cited by 9 publications

(15 citation statements)

References 28 publications

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“…Most textbooks described the LSP divided in lumbalis and sacralis plexi, because the ventral rami contributing of the nervous webbing to the pelvic limb (Miller et al, 1964;Schwarze and Schr€ oder, 1972;Getty, 1975;Dursun, 2000;Dyce et al, 2009;Evans and De Lahunta, 2010;Martinez-Pereira and Zancan, 2015). However, in P. gymnocercus and C. thous was not observed an independent plexus sacralis as described in dog (Fletcher, 1970;Bailey et al, 1988).…”

Section: Discussionmentioning

confidence: 99%

“…The data on the topography and length of the final portion of the spinal cord have been described in domestic Evans and De Lahunta, 2010;Martinez-Pereira and Zancan, 2015) and wild carnivores (Carvalho et al, 2003;Machado et al, 2009;Brıgida et al, 2010;Gregores et al, 2010;Branco et al, 2013). Considering only the Canidae family, the dog (Santiago, 1974;Evans and De Lahunta, 2010;Fletcher, 2013) and some species of wild canids, as Chrysocyon brachiurus (Machado et al, 2002), Atelocynus microtis (Saldanha et al, 2011), Lycalopex gymnocercus (Souza Junior et al, 2014), and a one exemplar of Cerdocyon thous (Pinheiro et al, 2011) had described the topography of this region.…”

Section: Discussionmentioning

confidence: 99%

“…The medium trunk (L6-7 to S1-2) was referred in the present study as ischiadicus plexus, a common term utilized when this structure originates the nerves: gluteus cranialis, gluteus caudalis, cutaneus femoris caudalis, and ischiadicus (Schwarze and Schr€ oder, 1972;Martinez-Pereira and Zancan, 2015). The ischiadicus plexus was indirectly described in dogs (Miller et al, 1964) and cats (Ghoshal, 1972) due the same origin of the gluteus cranial (L6-7 and S1) and caudal (L7) nerves with the ischiadicus nerve.…”

Section: Discussionmentioning

confidence: 99%

“…The topography of the caudal end of the spinal cord (intumescentia lumbalis and conus medullaris) and anatomy of lumbosacral plexus (LSP) are largely described in domestic animals (Miller et al, 1964;Getty, 1975;Dyce et al, 2009;Martinez-Pereira and Zancan, 2015), and various wild carnivores have described these structures (Carvalho et al, 2003;Machado et al, 2009;Castro et al, 2009;Brıgida et al, 2010;Gregores et al, 2010;Lopes et al, 2012;Branco et al, 2013;Medina et al, 2014). However, are few studies about the caudal end of spinal cord and LSP in wild canids, as C. thous and P. gymnocercus.…”

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confidence: 99%

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Comparison of the Lumbosacral Plexus Nerves Formation in Pampas Fox (Pseudalopex gymnocercus) and Crab‐Eating Fox (Cerdocyon thous) in Relationship to Plexus Model in Dogs

Lorenzão

Zimpel

Novakoski

et al. 2016

The Anatomical Record

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In this study, the spinal nerves that constitute the lumbosacral plexus (LSP) were dissected in two species of South American wild canids (pampas fox-Pseudalopex gymnocercus, and crab-eating fox-Cerdocyon thous). The nerves origin and distribution in the pelvic limb were examined and compared with the LSP model of the dog described in the literature. The LSP was formed by whole ventral branches of L5 at L7 and S1, and a contribution of a one branch from S2, divided in three trunks. The trunk formed by union from L5-6 and S1 was divided into the cranial (cutaneus femoris lateralis nerve) medial (femoralis nerve) and lateral branches (obturatorius nerve). At the caudal part of the plexus, a thick branch, the ischiadicus plexus, was formed by contributions from L6-7 and S1-2. This root gives rise to the nerve branches which was disseminated to the pelvic limb (nerves gluteus cranial and gluteus caudal, cutaneus femoris caudalis and ischiadicus). The ischiadicus nerve was divided into fibularis communis and tibialis nerves. The tibialis nerve emits the cutaneus surae caudalis. The fibularis communis emits the cutaneus surae lateralis, fibularis superficialis and fibularis profundus. The pudendus nerve arises from S2 with contributions of one branch L7-S1 and one ramus of the cutaneus femoris lateralis. Still, one branch of S2 joins with S3 to form the rectales caudales nerve. These data provides an important anatomical knowledge of a two canid species of South American fauna, besides providing the effective surgical and clinical care of these animals. Anat Rec, 299:361-369,

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Comparison of the Lumbosacral Plexus Nerves Formation in Pampas Fox (Pseudalopex gymnocercus) and Crab‐Eating Fox (Cerdocyon thous) in Relationship to Plexus Model in Dogs

Lorenzão

Zimpel

Novakoski

et al. 2016

The Anatomical Record

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“…This variation seems to be related to the grade of limbs development. In some snakes, where limbs are missing, the plexus is absent (Goodrich, 1913;Martinez-Pereira & Zancan, 2015), whereas in other groups such as Boidae, amphisbaenians, and lizards with limb reduction the plexus is formed by a few spinal nerves (Goodrich, 1930;Jerez, 2007;Martinez-Pereira & Zancan, 2015). The limbless skink Feylinia grandisquamis and Cercosaura parkerii, with limbs reduced but present, (Díaz, 1996;Jerez, 2007), have the lumbosacral plexus formed by three nerves.…”

Section: Discussionmentioning

confidence: 99%

Neuroanatomy of the lumbosacral plexus in a highly diversified clade of South‐American lizards. Evolution and phylogenetic implications

Quipildor

Quinteros

Lobo

2020

Journal of Morphology

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Only few published studies that describe the neuroanatomy of lizards. Here, we describe the neuroanatomy of several Iguanian species belonging to three families (species of Liolaemus and Phymaturus belonging to Liolaemidae, Tropidurus and Stenocercus as representatives of Tropiduridae, and Diplolaemus as a representative of Leiosauridae). Based on Sudan Black B staining and conventional dissections, the neuroanatomy of the lumbosacral region is described. Among the most outstanding results is the existence of a neuronal pattern of the lumbosacral plexus characteristic of Liolaemidae. In addition, it was found that in the genus Liolaemus the lumbosacral plexus is composed of five pairs of spinal nerves while in Phymaturus, Tropidurus, Stenocercus and Diplolaemus is composed from five to six pairs of spinal nerves (from pre-sacral, sacral, and caudal vertebrae). We find differences in the origin of the spinal nerves that constitute the plexus. In some cases, the pattern of nerves involved includes even the caudal vertebrae. Variation among taxa related to the zeugopodial innervation is described, and the homology of these nervous branches is discussed. Sexual differences were found in some species studied. Based on our results and available literature, we found three different patterns of innervation of the zeugopodium. The major contribution of this study is to provide a detailed description of lumbosacral plexus nerves pathways from their origins at the vertebral column to the muscles that they innervate.

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Morphological variation of the brachial plexus in four phyllostomid bat species (Chiroptera, Phyllostomidae)

Toledo

Peracchi

Nogueira

2022

The Anatomical Record

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Despite the remarkable morphological modifications that occurred in the thoracic limbs of bats, information about the brachial plexus in this group is still scarce. The present study aimed to describe the origin, structure, and distribution of these peripheral nerves in four Phyllostomidae species. Both antimeres of six Artibeus lituratus, five Desmodus rotundus, seven Glossophaga soricina, and five Phyllostomus hastatus—all adult males from the Adriano Lúcio Peracchi Collection (UFRRJ)—were dissected. After complete exposure of the structure, we found that the brachial plexus of D. rotundus and P. hastatus is formed by the same roots (C5–T1), whereas the fourth cervical spinal nerve and the second thoracic spinal nerve are present in G. soricina (C4–T1) and A. lituratus (C5–T2), respectively. There was intraspecific variation and asymmetry in the origin of the structure and the combinations of nerve segments forming terminal branches. The distribution to the target muscles and patagium, however, was not subject to significant variation in our sample. Data presented here support the presence of two prevailing conditions in distribution of nerves to the bat muscles, and the innervation of the membranes seems to be explained by embryogenesis. Although the brachial plexus in phyllostomid bats is similar to that of other terrestrial Laurasiatheria, aspects identified in these bats, apparently unique to Chiroptera, may be related to anatomical changes in the thoracic limbs functionally linked to flight.

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Comparative Anatomy of the Peripheral Nerves

Cited by 9 publications

References 28 publications

Comparison of the Lumbosacral Plexus Nerves Formation in Pampas Fox (Pseudalopex gymnocercus) and Crab‐Eating Fox (Cerdocyon thous) in Relationship to Plexus Model in Dogs

Comparison of the Lumbosacral Plexus Nerves Formation in Pampas Fox (Pseudalopex gymnocercus) and Crab‐Eating Fox (Cerdocyon thous) in Relationship to Plexus Model in Dogs

Neuroanatomy of the lumbosacral plexus in a highly diversified clade of South‐American lizards. Evolution and phylogenetic implications

Morphological variation of the brachial plexus in four phyllostomid bat species (Chiroptera, Phyllostomidae)

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