Comparative and Topographical Anatomy of the Fowl : Iii. On the Nervous Supply of the Thoracic Limb in the Fowl

幹男, 保田

doi:10.1292/jvms1939.22.89

Cited by 11 publications

(1 citation statement)

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“…O plexo secundário ou acessório é responsável pela inervação dos músculos serrátil e rombóide profundo, e emite também ramos cutâneos para o patágio cervical. 11 3 . O TBD segue um trajeto inclinado caudalmente 5 , sendo que este vaso foi obliterado, visto que, suas ramificações são idênticas às encontradas no lado esquerdo, ficando este lado com preferência à dissecação de nervos.…”

Section: Resultsunclassified

Estudo da inervação e vascularização do membro torácico de Columba livia

Franceschi

Souza

Provenci

et al. 2009

Braz. J. Vet. Res. Anim. Sci.

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No estudo referente aos territórios vásculo-nervosos em membro torácico de Pombos (Columba livia) foram utilizados 10 animais. Após a retirada de penas e pele, procedeu-se à identificação dos nervos no membro torácico direito, iniciando-se pela aplicação de compressas de ácido acético glacial 3% e dissecação de cada ramo do plexo braquial e seus músculos de inervação. Para a identificação dos territórios vasculares realizou-se a abertura da cavidade toracoabdominal, canulação do coração seguida de injeção de látex sintético via ventrículo esquerdo, dissecação dos vasos, medição e confecção de esquemas dos resultados. O plexo braquial é composto pelos nervos axilar, radial, peitoral e medianoulnar, em que os dois primeiros são responsáveis pela inervação da musculatura extensora, enquanto os dois últimos responsabilizam-se pela motricidade da musculatura flexora. Ainda pode ser observado um plexo acessório. O tronco braquiocefálico surge da Aorta ascendente, sendo encontrado um tronco direito e um esquerdo, emitindo as artérias carótida comum e subclávia como troncos principais. Destes surgem vasos que irrigam a cabeça, a região cervical e os membros torácicos. Em todas as aves observou-se uma constância na irrigação e inervação da musculatura, articulações e ossos do membro torácico, onde se pode presumir que existe uma constante na delimitação dos territórios vásculo-nervosos.

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Section: Resultsunclassified

Estudo da inervação e vascularização do membro torácico de Columba livia

Franceschi

Souza

Provenci

et al. 2009

Braz. J. Vet. Res. Anim. Sci.

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The growth of segmental nerves from the brachial myotomes into the proximal muscles of the chick forelimb during development

Bennett

Davey

Uebel

1980

J of Comparative Neurology

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A study has been made of the growth of segmental nerves 13 to 16 (SN13 to SN16) into the chick limb bud, from the time when they have just reached the ends to the brachial myotomes (stage 21: Hamburger and Hamilton, '51), until they enter the newly formed ventral (stage 24) and dorsal (stage 25) pre-muscle cell masses in the limb bud. At stage 22 axon bundles of SN13 to SN16 have grown off the ends of their respective myotomes, and converge towards the most densely packed mesenchyme in the limb bud at segmental level 15. As a consequence, the first axon bundles of SN14 and SN16 have almost joined those of SN15, whereas the further removed SN13 axon bundles have not yet reached the level of SN15. By stage 23 the first axon bundles from SN14 to SN16 have joined at segmental level 15 to form a nerve which grows toward the ventral pre-muscle cell mass. At stage 24 axon bundles from SN13 have joined those from SN14 to SN16 to form the brachialis longus inferior nerve, which enters the densest region of the ventral pre-muscle. Other axons from SN13 to SN15 grow along the pathways provided by the early arriving axon bundles towards the ventral pre-muscle, but diverge from those at segmental level 14 to grow to the dorsal pre-muscle. By stage 25 axon bundles from SN13 to SN15 have joined to form the brachialis longus superior nerve which enters the densest region of the dorsal pre-muscle. At stage 26 a plexus has formed due to this pattern of growth of the segmental nerves between stages 22 and 25. It is suggested that pre-muscle cells synthesize a nerve growth factor which directs the growth of axons into the limb bud.

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The growth of nerves in relation to the formation of premuscle cell masses in the developing chick forelimb

Bennett

Davey

Marshall

1983

J of Comparative Neurology

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A description is given of the growth of segmental nerves 13 to 16 (SN13 to SN16) from the brachial myotomes into the ventral and dorsal premuscle cell masses of the chick forelimb. At stage 25 (Hamburger and Hamilton, '51), segmental nerves have converged to form two nerve trunks which enter the ventral and dorsal premuscle cell masses. These nerves grow into the limb, parallel to its proximodistal axis. The nerve trunk in the ventral compartment, the brachialis longus inferior (bli n), grows on the brachial artery as far as the metacarpals. The nerve trunk in the dorsal compartment, the brachialis longus superior (bls n), grows on the precartilage adjacent to a dorsal premuscle density as far as the metacarpals. The brachialis longus inferior and superior nerve trunks give rise to a number of nerves during their growth to the metacarpals. Each of these nerves appears at the time of formation of a new premuscle cell density. At late stage 25, a posterior and ventral premuscle density forms in the middle of the stylopodium; posterior fascicles of the bli n diverge at this level and grow toward this new density to form the ulnar nerve. By stage 26 a posterior and ventral premuscle density is prominent over the bli n, at the junction of the stylopodium and the zeugopodium; ventral fascicles of the bli n grow into this density to form the flexor digitorum profundus nerve. At this stage a posterior and dorsal premuscle density forms just beyond the junction of the stylopodium and zeugopodium. Posterior fascicles of the bls n diverge at this level and grow toward this density to form a nerve from which the extensor metacarpi ulnaris, extensor digitorum communis, and radialis laterialis nerves are destined to form. At stage 29 the premuscle cell masses of the autopodium have formed. The remaining nerve fascicles comprising the bls n (the radialis profundus nerve) grow into the autopodium and branch to innervate each of the dorsal premuscles. The remaining nerve fascicles comprising the bli n (the middle nerve) grow into the autopodium and branch to innervate each of the ventral premuscles.

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Comparative and Topographical Anatomy of the Fowl : Iii. On the Nervous Supply of the Thoracic Limb in the Fowl

Cited by 11 publications

References 1 publication

Estudo da inervação e vascularização do membro torácico de Columba livia

Estudo da inervação e vascularização do membro torácico de Columba livia

The growth of segmental nerves from the brachial myotomes into the proximal muscles of the chick forelimb during development

The growth of nerves in relation to the formation of premuscle cell masses in the developing chick forelimb

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