Anatomic Study of the Elbow Joint in a Bengal Tiger (Panthera tigris tigris) Using Magnetic Resonance Imaging and Gross Dissections

Encinoso, Mario; Orós, Jorge; Ramı́rez, G.A.; Jaber, José Raduán; Artiles, Alejandro; Arencibia, A.

doi:10.3390/ani9121058

Cited by 4 publications

(4 citation statements)

References 34 publications

(62 reference statements)

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“…In contrast, excellent discrimination of the main components of the encephalon , including the rhinencephalon , telencephalon , diencephalon , mesencephalon , metencephalon , and myelencephalon , was achieved with the T2W images. These images have proven to be useful for anatomical and clinical studies of various exotic species [ 3 , 12 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. Therefore, the transverse T2W images revealed the olfactory bulb and its recess, which was hyperattenuated compared to the telencephalon .…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, both MRI and macroscopic anatomical sections provided adequate information for anatomic evaluation in teaching and clinical settings. In contrast to other studies conducted on rodents and rabbits [ 15 , 30 , 31 , 32 ], we employed anatomical sections and conducted a comprehensive anatomical description, including the location and intensity of the different structures comprising the central nervous system of the crested porcupine. The sagittal images, compared with those displayed in the transverse plane, facilitated a better assessment of the topographic anatomical structures in the median plane, primarily involving the intracranial cavity and the central nervous system.…”

Section: Discussionmentioning

confidence: 99%

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Cranial Investigations of Crested Porcupine (Hystrix cristata) by Anatomical Cross-Sections and Magnetic Resonance Imaging

Bordon

Encinoso

Arencibia

et al. 2023

Animals

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This paper aimed to describe an atlas of the crested porcupine (Hystrix cristata) head by applying advanced imaging techniques such as MRI. Furthermore, by combining the images acquired through these techniques with anatomical sections, we obtained an adequate description of the structures that form the CNS and associated structures of this species. This anatomical information could serve as a valuable diagnostic tool for the clinical evaluation of different pathological processes in porcupines, such as abscesses, skull malformations, fractures, and neoplasia.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Cranial Investigations of Crested Porcupine (Hystrix cristata) by Anatomical Cross-Sections and Magnetic Resonance Imaging

Bordon

Encinoso

Arencibia

et al. 2023

Animals

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“…Dissections of large carnivores generally, and specifically of felids have been common in the scientific literature since the mid‐19th century (e.g., Barone, 1967; Encinoso et al, 2019; Haughton, 1864; Hubbard et al, 2009; Ross, 1883; Scharlau, 1925; Straus‐Durckheim, 1845; Windle, 1889; Windle & Parsons, 1897, 1898). These types of studies typically describe their dissections in words, accompanied by drawings or photos of the dissection as it proceeded, but usually do not document exactly where muscles attached in the form of a detailed muscle map, with a few exceptions (e.g., Haines, 1950; Hudson et al, 2011; Reighard & Jennings, 1901).…”

Section: Introductionmentioning

confidence: 99%

Muscular anatomy of the forelimb of tiger (Panthera tigris)

et al. 2022

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Dissection reports of large cats (family Felidae) have been published since the late 19th century. These reports generally describe the findings in words, show drawings of the dissection, and usually include some masses of muscles, but often neglect to provide muscle maps showing the precise location of bony origins and insertions. Although these early reports can be highly useful, the absence of visual depictions of muscle attachment sites makes it difficult to compare muscle origins and insertions in living taxa and especially to reconstruct muscle attachments in fossil taxa. Recently, more muscle maps have been published in the primary literature, but those for large cats are still limited. Here, we describe the muscular anatomy of the forelimb of the tiger (Panthera tigris), and compare muscle origins, insertions, and relative muscle masses to other felids to identify differences that may reflect functional adaptations. Our results reiterate the conservative nature of felid anatomy across body sizes and behavioral categories. We find that pantherines have relatively smaller shoulder muscle masses, and relatively larger muscles of the caudal brachium, pronators, and supinators than felines. The muscular anatomy of the tiger shows several modifications that may reflect an adaptation to terrestrial locomotion and a preference for large prey. These include in general a relatively large m. supraspinatus (shoulder flexion), an expanded origin for m. triceps brachii caput longum, and relatively large m. triceps brachii caput laterale (elbow extension), as well as relatively large mm. brachioradialis, abductor digiti I longus, and abductor digiti V. Muscle groups that are well developed in scansorial taxa are not well developed in the tiger, including muscles of the cranial compartment of the brachium and antebrachium, and m. anconeus. Overall, the musculature of the tiger strongly resembles that of the lion (Panthera leo), another large‐bodied terrestrial large‐prey specialist.

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“…The Bengal Tiger ( Panthera tigris tigris ) belongs to the same family as the domestic cat, Felidae , but it is exotic and much bigger. The elbow joints of the Bengal Tiger ( Panthera tigris tigris ) were studied by Encinoso et al [ 8 ] using magnetic resonance imaging (MRI) in combination with traditional gross dissections. The elbow joint is complex and consists of a hinge joint between the humerus (whose distal end is a trochlea) and the proximal ends of the radius and ulna (with a reciprocal shape), as well as the pivot joint between the proximal ends of the antebrachial bones, all enclosed by a single capsule filled with synovial fluid.…”

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confidence: 99%