Comparative Functional Analysis of the Anatomy of the appendicular skeleton in two reptilian species

Gadel-Rab, Ali G.; Mahmoud, Fatma A.; Saber, Samy A.; ElSalkh, Boshra A.; El‐Dahshan, Asmaa A.; Gewily, Doaa I.

doi:10.21608/ejhm.2018.18353

Cited by 3 publications

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“…However, there are interspecific differences in the number, measures and fusion of some elements. In the present 2 species studied, the limb elements are generally similar to that described by Stephenson and Stephenson [37] in Naultinus elegans, Hoplodactylus duvaucelii and Hoplodactylus pacificus, El-Wetery [38] in Agamidae and Chamaeleontidae, Lima et al [39] in Caiman yacare, Yildirim et al [40]) in Eumeces schneideri barani, Eumeces schneideri princeps and Eumeces schneideri pavimentatus, Fontanarrosa and Abdala [41], in several Squamata, Yıldırım et al [42] in Ablepharus kitaibelii and Ríos-Orjuela et al [43] in Anolis heterodermus and Anolis tolimensis and Ali et al [44] in Acanthodactylus boskianus and Ptyodactylus guttatus.…”

Section: Discussionmentioning

confidence: 99%

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The Skeletal Characteristics of Limb of Two endemic Lizard Species )Acantocercus adramitanus and Chamaeleo calyptratus( in Yemen

Obady

2023

مجلة جامعة السعيد للعلوم الانسانية و التطبيقية

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Lizards have the broadest geographical distribution encompassing a wide range of locomotor habitats. This is reflected in a large morphological diversity of the general body form and of the locomotory apparatus among these animals. So, the present study aimed to clarify the osteological characteristics of the limb skeleton of two endemic species sharing the same environment but differ in microhabitat and mode of their locomotion. Under a dissecting microscope, the fore and hindlimbs of each animal were excised by using iris scissors after narcotizing by doses of anesthetic. The specimens were processed for staining with Alcian blue and alizarin stains to stain the skeletal limbs. In the current study, intra- and interspecific variations were observed in 2 species studied in measurements of limb elements. In Chamaeleo calyptratus both the fore- and hind limbs were relatively equal in length. While, the FOL, MAL, TOFL2, TOFL3, TOFL4 and TOFL5 were significantly shorter than the hindlimb in Acantocercus adramitanus (t= -5.60, -8.59, -3.84, -6.69, -6.12 and -8.35 respectively P= 0.000). A significant pronounced variation in the length of the long bone in lizard studied. Meanwhile, high significant variations were noticeable for metacarpus and metatarsus measurements in A. adramitanus (F4,45= 88.66, P< 0.0001 and F4,45= 32.07, P <0.0001 respectively). Slightly significant variations were observed in metacarpus and metatarsus measurements of C. calyptratus (F4,45= 3.34, P<0.02 and F4,45= 3.42, P<0.02 respectively). Except the centrale, the width of elements composing the wrist and ankle is larger than length in A. adramitanus. High significant variations were noticeable in the autopodium of C. calyptratus. The radiale and centrale had larger length than width. However, C. calyptratus have relatively short ulnare, distal carpus 5 and proximal tarsus. These variations in limb elements of A. adramitanus and C. calyptratus may be due to the difference in microhabitat.

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Section: Discussionmentioning

confidence: 99%

“…Ground-dwellers should have relatively long, with high tibia: femur ratios, and relatively short forelimbs. Climbers should have relatively short limbs, with low tibia: femur ratios, and equally long hind and forelimbs [26,44,48].…”

Section: Discussionmentioning

confidence: 99%

The Skeletal Characteristics of Limb of Two endemic Lizard Species )Acantocercus adramitanus and Chamaeleo calyptratus( in Yemen

Obady

2023

مجلة جامعة السعيد للعلوم الانسانية و التطبيقية

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“…The study contained the tibia and fibula of approximately equal length but shorter and thinner than the femur and also noted that the tibia is more straight than the fibula and articulated with the femur by the tibial condyle of the femur. The distal part is articulated with the heel bone and is ana-logous to the study of a developed vertebrate 35 .…”

Section: Discussionmentioning

confidence: 99%

Comparative anatomical study to skeleton for same species of Turtles in Iraq

Yousif

2022

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Bones were recorded in the skeleton of some species of Iraqi turtle Mauremys rivulata; the objectives of this study came in light of current conditions, environmental developments, talents and techniques of biological studies taking place in the country, need for an anatomy guide in river turtles of Iraqi species, to identify all kinds of similarities and differences with their preaching, this work or study has become written in response to those modern needs. It is designed to be one of the resources for those interested in biological studies, beginners or professionals, and veterinarians, distinguishing them from marine and global species. Turtles were dissected in the laboratories of the Research Center and Museum of Natural History / the University of Baghdad. The specimen was dissected by removing the abdominal cortex, muscles, and internal viscera and imaging the bone starting from the skull to the hind leg bones. This first study was in Iraq. Keywords: Turtles (Mauremys rivulata), anatomy, skeleton, bone, Iraq

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Musculoskeletal anatomy and nomenclature of the mammalian epipubic bones

et al. 2021

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Despite the well-established anatomy nomenclature for the marsupial skeleton, there are no names for the epipubic bone structures. Epipubic bones are paired bones articulating with the pubis and projecting cranially in the ventral body wall, present on the pelvic girdle of cynodonts, monotremes and marsupials. These bones were commonly thought to be related to pouch support in marsupials and more recently associated with locomotion. The parts of the epipubic bones have not been named and this has impeded proper morphological analysis. We analyzed the epipubic bones of 302 skeletons comprising American and Australian marsupials, as well as 27 monotreme skeletons, and dissected 10 marsupials for myological attachments analysis. We suggest the following nomenclature for the epipubic bone structures: crest for the cranial end, shaft for the body of the bone, lateral tubercle and the medial articular process. Some markings on the epipubic bone include the oblique line, pertaining to the attachment of external abdominal oblique muscle from the opposite side. The pyramidalis line is the suggested nomenclature for the pyramidalis muscle attachment and the inguinal ligament line for the inguinal ligament attachment. Regarding myology and attachments, based on dissections and review of the literature, the muscles pyramidalis, pectineus, external and internal abdominal oblique, transversus abdominis and rectus abdominis and the structures linea alba, linea semilunaris and the inguinal ligament are connected to the epipubic bone. As has been previously noted, anatomically, epipubic bones are so named due to their position (epi-above, pubic-pubis), and the same applies to structures such as the "epipubic process" or "epipubic cartilage" in amphibians and reptiles. While testing epipubic bone homology in vertebrates is beyond the scope of this work, we believe that using "epipubic bones" or epipubic cartilage/process as standardized terms for the structures found in the most cranial part of the superior ramus of the pubis would facilitate better anatomical communication. This should be valid for other similar terms, such as "epipubes" or "prepubis", that might occur in the literature in relation to this same physiographic position, and it should also be named as epipubic. We believe that this nomenclature will help in future morphologic studies.

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Comparative Functional Analysis of the Anatomy of the appendicular skeleton in two reptilian species

Cited by 3 publications

References 0 publications

The Skeletal Characteristics of Limb of Two endemic Lizard Species )Acantocercus adramitanus and Chamaeleo calyptratus( in Yemen

The Skeletal Characteristics of Limb of Two endemic Lizard Species )Acantocercus adramitanus and Chamaeleo calyptratus( in Yemen

Comparative anatomical study to skeleton for same species of Turtles in Iraq

Musculoskeletal anatomy and nomenclature of the mammalian epipubic bones

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