Miologia do membro torácico da paca (Cuniculus paca)

Leal, Leonardo Martins; Silva, Juliana A.C.E.; Oliveira, Fabrício Singaretti de; Sasahara, Taís Harumi de Castro; Machado, Márcia Rita Fernandes

doi:10.1590/s0100-736x2016000200012

Cited by 6 publications

(8 citation statements)

References 6 publications

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“…Em suínos, apresenta-se fusiforme e não é muito desenvolvido, diferente dos demais mamíferos domésticos, o quati, o cachorro do mato, o veado catingueiro e a cobaia [6,10,11,20,[22][23][24]. O músculo braquial nos animais domésticos, da paca e do veado catingueiro surge na parte proximocaudal do úmero e segue lateralmente em um sulco espiralado desse osso [10,17,24], o mesmo ocorreu para o macaco-prego e o macaco-da-noite.…”

Section: Discussionunclassified

“…O músculo coracobraquial, nos animais domésticos, quati, rato, cobaia e na paca se estende entre a face medial do tubérculo supreglenoide e a parte proximal da diáfise do úmero, é um fixador do ombro tendo relação com a flexão e a extensão do mesmo [6,10,12,16,17,22,23]. O mesmo ocorreu para o macaco-prego e o macaco-da-noite.…”

Section: Discussionunclassified

“…O Sapajus apella, conhecido como Macaco--prego, pertence à ordem dos Primatas, infraordem Platyrrhini e família Cebidae [1]. O gênero Cebus é composto por 12 espécies, sendo que o Sapajus apella constitui a espécie mais estudada, podendo ser comumente encontrada em cativeiros, parques, zoológicos e centros de triagem no Brasil [11,17,18].…”

Section: Introductionunclassified

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Comparative Myology of the Forelimb in Capuchin and Night Monkeys

Lima

Alves

Gonçalves

et al. 2017

Acta Scientiae. Vet.

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Background: The capuchin monkey (Sapajus apella) and the night monkey (Aotus azarae infulatus) are primates with broad distribution in South America. Sapajus apella is best-studied species in the genus Cebus, and is commonly found in captivity in parks, zoos, and sorting centers in Brazil. Species in the genus Aotus have a primitive appearance with large eye sockets, and their nocturnal habits are unique among the apes today. Because these two species belong to the same order, they have similar morphological characteristics. In this work, we conduct a comparative study of the forelimb musculature between these two species to produce data for use in veterinary procedures.Materials, Methods & Results: Three capuchin monkey and three night monkey specimens were used, two females and one male for each species. Specimens were acquired from the National Center for Primates under approval from the Animal Research (CEPAN/IEC/SVS/MS) No. 008/2010. Specimens were frozen and donated after death by natural causes to the LaPMA (Animal Morphology Research Laboratory) at the Federal Rural University of Amazonia (UFRA). After being thawed in running water, the animals were fixed by intramuscular injection with 10% formaldehyde in aqueous solution and dissected to display thoracic limb muscle groups. Dissections were performed using basic instrumentation by creating a medial incision from the carpal region to the axillary region. After incision, the skin was folded and muscles were separated in order to identify muscle groups. The nomenclature adopted was based on the veterinary anatomy, and books about human anatomy for comparison of forearm muscles. The muscles that compound the shoulder was the supraspinal and infra-spinal. The arm was composed by the teres major and minor, the triceps brachii (long head, lateral head, and medial head), brachialis, biceps brachii, tensor muscle of the antebrachial fascia, coracobrachialis, and anconeous. The forearm included the extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorus, extensor digiti minimum, extensor carpi ulnaris, abductor pollicis longus, extensor pollicis brevis, flexor carpi ulnaris, flexor digitorum profundus, flexor digitorum superficialis, flexor carpi radialis, flexor pollicis longus, extensor carpi radialis brevis, and brachioradialis muscles. In general, the two species have the same muscle groups, except for the absence of the teres minor and brachioradialis in Capuchin monkey, and the absence of the long head of the triceps brachii and extensor carpi radialis brevis at night monkey.Discussion: The forelimb musculature in the capuchin and night monkey is similar that described in the literature for both domestic and wild species such as coati, paca, and bush dogs, with little variation among the studied species. Regarding the muscles of the forearm, the capuchin monkey and the night monkey have muscular anatomy similar to that of humans, with some variations. The anatomical variations in common traits do not impede function. Interspecific variation is a common occurrence in nature, and can be explained by species divergence which occurs over many years, for various reasons. Knowledge of the comparative miology of the capuchin monkey and the night monkey is still nascent, thus future research is needed to better understand the structure of these animals, which can then serve as a basis for studies of other ethological aspects of the species biology.

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Section: Discussionunclassified

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Comparative Myology of the Forelimb in Capuchin and Night Monkeys

Lima

Alves

Gonçalves

et al. 2017

Acta Scientiae. Vet.

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show abstract

“…A literatura refere-se a esse músculo na paca, como um músculo profundo e encoberto pelos músculos trapézio cervical e braquiocefálico (LEAL et al, 2016). As descrições da topografia desse músculo no membro torácico feitas por Getty et al (1986) O músculo tríceps apresenta três cabeças de origem na capivara (cabeça longa, cabeça lateral e cabeça medial).…”

Section: Discussionunclassified

“…As descrições da topografia desse músculo no membro torácico feitas por Getty et al (1986) O músculo tríceps apresenta três cabeças de origem na capivara (cabeça longa, cabeça lateral e cabeça medial). Não foi encontra uma cabeça acessória como na paca (LEAL et al, 2016) e outros animais domésticos como os equinos e ruminantes (GETTY et al, 1986;KÖNIG;LIEBICH, 2016). No entanto, a literatura encontra-se divergente em relação a uma possível cabeça acessória do músculo tríceps braquial na paca (LEAL et al, 2016e SOUZA et al, 2017.…”

Section: Discussionunclassified