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Anatomia, Histologia, Embryologia

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https://www.readbyqxmd.com/read/29214655/an-anatomic-description-of-intrinsic-brachial-muscles-in-the-crab-eating-fox-cerdocyon-thous-linnaeus-1776-and-report-of-a-variant-arterial-distribution
#1
J Vélez, J Ramírez, O Aristizábal
The crab-eating fox (Cerdocyon thous) is a wild canid distributed throughout South America. It is one of the wild canids reported being hit by vehicles and injured in snares, thus inducing trauma or injury to the musculoskeletal system, possibly occurring in the brachial region. The main objective of this research was to provide an anatomic description of the crab-eating fox's intrinsic brachial muscles including shape, origin, insertion, innervation and arterial blood supply, compared with that of the domestic dog...
December 6, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29210097/radiography-of-the-distal-extremity-of-the-manus-in-the-donkey-foal-normal-images-and-quantitative-characterization-from-birth-to-2%C3%A2-years-of-age-a-pilot-study
#2
B Van Thielen, I Willekens, A Van der Schicht, P Pestieau, F Verhelle, P Goossens, R Decoster, O Jacqmot, P Delperdange, V Busoni, G De Mol, N Buls, S Provyn, M Kichouh, J de Mey, R Murray
This study describes a radiographic survey of the anatomical development of the distal extremity of the manus in the donkey from 0 to 2 years of age. The right distal limb of 10 donkey foals, born in the spring of 2012, underwent radiographs every month for the first 6 months of age and every 3 months during the following 18 months. Latero-medial radiographs with and without barium marker at the coronary band and dorso-palmar radiographs with both front feet in weight bearing were obtained. The distal physis of the third metacarpal bone and the proximal physis of the proximal phalanx (phalanx proximalis) were closed at the mean age of 18...
December 6, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29205895/arterial-distribution-to-the-pelvic-cavity-and-pelvic-limb-in-the-pampas-deer-ozotoceros-bezoarticus-linnaeus-1758
#3
N Vazquez, C Ríos, V Sorriba, W Pérez
This research is a study about the arterial vascularization of pelvic cavity and pelvic limb in pampas deer. For this study, 25 dead animals were used. The vascularization of the organs was investigated using a latex injection technique. Two animals were injected in the common carotid artery with contrast to cardiac angiography, and then, radiographs were taken. The aorta showed the two external iliac arteries, and after a short course, the aorta ended in two internal iliac arteries. The median sacral artery was originated from the dorsal surface cranially to the emergence of the internal iliac arteries...
December 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29205465/gross-anatomy-of-the-heart-of-the-alpaca-vicugna-pacos-linnaeus-1758
#4
W Pérez, V Méndez, N Vazquez, M Navarrete, H E König
The available information about anatomical characteristics of the cardiovascular system of the alpaca (Vicugna pacos, Linnaeus 1758) is scarce. The general objective of this work was to describe its heart anatomy. We dissected six adult animals and five neonates. The heart of the alpaca was located in the middle mediastinum, with a craniocaudal extension from the third to the sixth rib. No ligament that connected the fibrous pericardium to the sternum or to the diaphragm was detected. In the right atrium, there was a developed crista terminalis and small pectinate muscles...
December 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29205459/histomorphological-features-of-the-tongue-of-the-eurasian-teal-anas-crecca
#5
B Marzban Abbasabadi, R Sayrafi
This study presents the histomorphological features of tongue in Eurasian teal (Anas crecca); the smallest extant dabbling duck. Heads of four adult males and four adult females were used in this study. The results illustrate a tongue with three different parts; the apex with a lingual nail in ventral surface, the body with a lingual prominence in caudal part and some large and small conical papillae in lateral sides and the root, that was covered with many conical papillae in different sizes. Histological results revealed two types of keratinized and non-keratinized epithelium covering parts of the tongue...
December 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29205453/localization-of-thrombospondin-1-and-its-receptor-cd36-in-the-ovary-of-the-ostrich-struthio-camelus
#6
D Rodler, F Sinowatz
Angiogenesis, the formation of new blood vessels from pre-existing vasculature, plays a decisive role for the rapid growth of avian follicles. Compared to mammals, few data on the angiogenesis in the avian ovary are available. However, whereas several pro-angiogenic factors in the avian ovary have been recently studied in detail, little information is available on the localization of anti-angiogenic factors. The aim of this study was to determine the localization and possible function of the anti-angiogenic factor thrombospondin-1 (TSP-1) and its receptor CD36 in the ovary of the ostrich using immunohistochemistry and to correlate the results with ultrastructural data...
December 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29152785/ultrastructure-of-plasma-cells-in-harderian-gland-of-laying-hens
#7
P Bejdić, R Avdić, Lj Amidžić, V Ćutahija, F Tandir, N Hadžiomerović, A Katica, N Mlaćo
Ultrastructure of plasma cells in Harderian gland was investigated using the transmission electron microscopy. For this research, we examined the glands of 32 laying hens collected at 1, 7, 20 and 40 days and 4, 6, 8 and 12 months of the birds' ages. The research showed that the stroma of the gland contains a large number of lymphocytes and plasma cells. Most of the plasma cells are mature, but morphologically do not show productive activity. Only some individual plasma cells, situated under the secretory epithelium of primary and secondary ducts, have extremely dilated cisternae of rough endoplasmic reticulum which contain moderately dense, granular material...
November 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29152779/morphogenesis-of-lingual-papillae-of-one-humped-camel-camelus-dromedarius-during-prenatal-life-a-light-and-scanning-electron-microscopic-study
#8
A S Abou-Elhamd, M Abd-Elkareem, A El-Zuhry Zayed
This study was made on 24 camel fetuses of crown-rump vertebral length (CVRL) ranging from 10.5 cm to 105 cm CVRL (94-352 days old). These camel fetuses were classified into three groups representing the three trimesters of prenatal life. During the first trimester (94-142 days), lingual papillae (circumvallate and lentiform papillae) were demonstrated on the lingual root, but lingual body and the apex were almost free of papillae except for some scattered epithelial projections especially near the lateral borders of the body...
November 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29152773/categorization-of-the-pelvic-limb-standing-posture-in-nine-breeds-of-dogs
#9
S S Sabanci, M K Ocal
The objective of the study was to categorize objectively nine breeds of healthy dogs according to pelvic limb standing posture. A total of 135 dogs from different breeds were used and the standing angles of the hip, stifle, and tarsal joints, together with the percentages of the greater trochanter, patella and tuber calcanei heights, with respect to crista iliaca height, were used as discriminant variables for the categorization of pelvic limb posture. All included breeds were allocated to three groups of the standing pelvic limb posture...
November 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29152772/papillary-architecture-of-the-lingual-surface-in-the-puma-puma-concolor
#10
S Erdoğan, S Villar, H E König, W Pérez
This research presents the first anatomical description of the tongue and lingual papillae of the mountain lion (puma). The tongues of three adult male pumas were used in this study. The tongues were dissected and studied firstly by gross and stereomicroscopy. Samples of each part were processed by study with scanning electron microscopy. The margins of the lingual apex were surrounded by numerous filiform papillae, which had a bulky papillary body and a bifurcated tip. On the dorsal surface of the lingual apex, filiform papillae were remarkably pointed and had many secondary projections, which emerged from the base of the main papilla...
November 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29152768/the-distribution-of-calbindind-28k-and-parvalbumin-immunoreactive-neurons-in-the-somatosensory-area-of-the-pigeon-pallium
#11
J H Ahn, J H Park, S Y Choi, T-K Lee, J H Cho, I H Kim, J-C Lee, J H Choi, I K Hwang, E Lee, S Park, J Lim, Y J Lee, K Seo, M-H Won
GABAergic interneurons regulate the degree of glutamatergic excitation and output of projection neurons. In this study, we investigated the distribution of calbindinD-28k (CB) and parvalbumin (PV) in the somatosensory area of the pigeon pallium using immunohistochemical method. Our results show that anatomical structures of the somatosensory area of the pigeon pallium consisted of several subdivisions including the hyperpallium, intercalated hyperpallium, mesopallium, nidopallium and basorostralis. Neuronal density was significantly higher in the intercalated hyperpallium and basorostralis than that in the other subdivisions...
November 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29139158/macro-anatomical-and-morphometric-studies-of-the-hindlimb-of-grasscutter-thryonomys-swinderianus-temminck-1827
#12
K T Onwuama, S A Ojo, J O Hambolu, T Dzenda, F O Zakari, S O Salami
The hindlimb of the grasscutter (Thryonomys swinderianus, Temminck-1827) was studied using 12 adult (≥6 months) rats of either sex with the mean weights of 1.42 ± 0.20 kg and 0.82 ± 0.13 kg for buck (n = 6) and doe (n = 6), respectively (p < .05). Characteristics of the bones were studied by gross observation after their preparation. Measurements of different segments of the hindlimb were also taken, giving a total average length of 31.80 cm. Correlation coefficients between length of bone and weight of rats were positive (p < ...
November 14, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29094769/differentiation-and-characterization-of-rat-adipose-tissue-mesenchymal-stem-cells-into-endothelial-like-cells
#13
V Cannella, G Piccione, R Altomare, A Marino, P Di Marco, L Russotto, S Di Bella, G Purpari, F Gucciardi, G Cassata, G Damiano, V D Palumbo, A Santoro, C Russo Lacerna, A I Lo Monte, A Guercio
In this study, mesenchymal stem cells were isolated from rat adipose tissue (AD-MSCs) to characterize and differentiate them into endothelial-like cells. AD-MSCs were isolated by mechanical and enzymatic treatments, and their identity was verified by colony-forming units (CFU) test and by differentiation into cells of mesodermal lineages. The endothelial differentiation was induced by plating another aliquot of cells in EGM-2 medium, enriched with specific endothelial growth factors. Five subcultures were performed...
November 2, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29052248/comparative-anatomical-study-of-sound-production-and-reception-systems-in-the-common-dolphin-delphinus-delphis-and-the-harbour-porpoise-phocoena-phocoena-heads
#14
M Arribart, J Ognard, C Tavernier, Y Richaudeau, C Guintard, W Dabin, D Ben Salem, J-L Jung
Magnetic resonance imaging (MRI) and computed tomography (CT) scans were used to analyse, respectively, the soft tissues and the bones of the heads of four common dolphins and three harbour porpoises. This imaging study was completed by an examination of anatomical sections performed on two odontocete heads (a subadult common dolphin and a subadult harbour porpoise). The three complementary approaches allowed to illustrate anatomical differences in the echolocation systems of the common dolphin and the harbour porpoise...
October 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29052233/heterogeneous-expression-of-glycoconjugates-in-the-primary-olfactory-centre-of-the-japanese-sword-tailed-newt-cynops-ensicauda
#15
T Matsui, K Tanaka, Y Kobayashi
Histochemical organization of the Caudata olfactory system remains largely unknown, despite this amphibian order showing phylogenetic diversity in the development of the vomeronasal organ and its primary centre, the accessory olfactory bulb. Here, we investigated the glycoconjugate distribution in the olfactory bulb of a semi-aquatic salamander, the Japanese sword-tailed newt (Cynops ensicauda), by histochemical analysis of the lectins that were present. Eleven lectins showed a specific binding to the olfactory and vomeronasal nerves as well as to the olfactory glomeruli...
October 19, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28984378/prenatal-development-in-greater-mouse-eared-bat-myotis-myotis-borkhausen-1797-chiroptera-%C3%A2-vespertilionidae
#16
E P Paksuz, S Hayretdağ, K Olgun
Order Chiroptera is the second largest mammal group after rodents. An understanding of the development of the bats, which is a very special mammal group in terms of their lifestyles, morphology and their ability to fly, is very important because most of the adult anatomical differences characterizing species occur during organogenesis. In this study, developmental stages were determined for Myotis myotis species based on external morphological characteristics from embryos obtained from wild-caught pregnant females...
October 6, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28975655/absence-of-bony-patella-in-the-white-eared-opossum-didelphis-albiventris-morphology-and-diagnostic-imaging
#17
L R Inamassu, M J Mamprim, C R Dadalto, F C Cavaletti, M C Mello, B C Schimming
Patella, the kneecap, is the best known and largest of the sesamoid bones and is present in the quadriceps femoris tendon. Typical patella appears in all extant mammals, with the exception of some marsupials and bats. No description about the white-eared opossum stifle was found in the available literature up to now. Thus, the knee joints of 16 Didelphis albiventris were examined by gross anatomy, histology, radiography and computed tomography images to determine the presence or absence of ossified patella in this animal...
October 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28960412/description-of-post-implantation-embryonic-stages-in-european-roe-deer-capreolus-capreolus-after-embryonic-diapause
#18
M Beyes, N Nause, M Bleyer, F-J Kaup, S Neumann
The embryonic stage of development is defined as the period between fertilization and the establishment of most of the organ systems by the end of this period. Development in this stage is rapid. In many mammalian species, particularly in humans, the interval between fertilization and implantation is exactly determined and continuous without intermission. However, European roe deer (Capreolus capreolus) embryos undergo a reversible retardation of development. This interesting reproduction strategy is called embryonic diapause (delayed implantation)...
September 27, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28960404/histochemical-and-surface-ultrastructural-characteristics-of-the-nasal-cavity-of-laughing-dove
#19
S M Farouk, S A Hassan, M A Emam
Ten apparently healthy, adult laughing doves were used to document detailed histological, histochemical and surface ultrastructural features of the nasal cavity and to investigate the structure-function relationship of the nasal cavity in this species. We observed that the nasal cavity of the laughing dove was composed of three main regions: nasal vestibule, respiratory and olfactory. Each region presented a characteristic epithelial lining. The epithelium varied along the nasal vestibule from keratinized stratified squamous rostrally to non-keratinized stratified squamous in the middle and stratified cuboidal in the caudal region of the nasal vestibule...
September 27, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28940671/osteology-and-radiology-of-the-maned-wolf-chrysocyon-brachyurus-pelvic-limb
#20
R C Siqueira, S C Rahal, L R Inamassu, M J Mamprim, M Felix, M S Castilho, L R Mesquita, V L Ribeiro, C R Teixeira, F B Rassy
This study describes the osteology and radiology of the pelvic limb in maned wolves. Ten (five live and five dead) maned wolves (Chrysocyon brachyurus), five males and five females, aged from 2 to 7 years old were used. Digital radiographs were taken and recorded for both pelvic limbs in all animals. Osteology was correlated with the radiographic images. The pelvis had a rectangular shape, and the obturator foramen (foramen obturatum) was oval. The femoral neck (collum femoris) was short and thick. The greater trochanter (trochanter major) extended proximally to near the dorsum of the femoral head (caput ossis femoris)...
September 20, 2017: Anatomia, Histologia, Embryologia
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