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Anatomia, Histologia, Embryologia

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https://www.readbyqxmd.com/read/28122400/structure-and-innervation-of-the-equine-supraspinous-and-interspinous-ligaments
#1
A Ehrle, L Ressel, E Ricci, E R Singer
Pain related to the osseous thoracolumbar spine is common in the equine athlete, with minimal information available regarding soft tissue pathology. The aims of this study were to describe the anatomy of the equine SSL and ISL (supraspinous and interspinous ligaments) in detail and to assess the innervation of the ligaments and their myofascial attachments including the thoracolumbar fascia. Ten equine thoracolumbar spines (T15-L1) were dissected to define structure and anatomy of the SSL, ISL and adjacent myofascial attachments...
January 25, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28120342/morphological-study-of-the-persian-leopard-panthera-pardus-saxicolor-tongue
#2
J Sadeghinezhad, M T Sheibani, I Memarian, R Chiocchetti
This study described the morphological features of the Persian leopard (Panthera pardus saxicolor) tongue using light and scanning electron microscopy techniques. The keratinized filiform papillae were distributed all over the entire dorsal surface of the tongue and contained small processes. They were changed into a cylindrical shape in the body and conical shape in the root. The fungiform papillae were found on the apex and margin of the tongue. Few taste pores were observed on the dorsal surface of each papilla...
January 24, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28111781/a-macro-anatomical-investigation-of-the-some-skull-bones-of-nehring-s-blind-mole-rats-spalacidae-nannospalax-nehringi
#3
Ş Ketani, M Kilinç, S Erdoğan, A Kaya, Y Coşkun
This study was aimed to demonstrate the specific anatomical features of the skull bones of Nehring's blind mole rats. Eight skulls, belonging to animals of both sexes, were used. The occipital squama contributed to the formation of the caudal portion of the skull roof. The foramen magnum was quite large. The external occipital crest was present only in the males. The parietal bones formed the middle portion of the skull roof together with the well-developed inter-parietal bones. The zygomatic process of the temporal bone formed the zygomatic arch by extending to the temporal process of the zygomatic bone...
January 23, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28105755/morphometric-changes-in-polish-konik-mares-after-nearly-a-hundred-years-of-the-breed-s-existence
#4
E Pasicka, K Tarnawski, A Chrószcz, H Geringer de Oedenberg
The study was carried out on 126 mares of the Polish Konik horse breed. Mares were bred under a stable system housing and they came from five leading conservation breeding centres. The mares were divided into three age groups: 3-5 years old, 6-9 years old and over 10 years old. Each animal was characterized using 40 morphometric measurements. Discriminant analysis proved the exterior differences of mares in terms of the analysed metric values. It was concluded that the morphotype of modern Polish Konik mares is statistically significantly influenced by the following traits: neck ventral length, forearm circumference, distance between the vascular notch (incisura vasorum facialium) and the oral angle (angulus oris), distance between the margo coronalis ungulae and the margo solearis ungulae of the thoracic limb, thorax circumference and pelvis width...
January 20, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28052376/unusual-combination-of-multiple-vascular-anomalies-in-a-german-shepherd-puppy-with-megaoesophagus
#5
I Biasato, G Lanteri, F Guarda, M T Capucchio, F Marino, G Briguglio, F Macrì
A 2-months-old male German shepherd puppy was referred for regurgitation and delayed growth. Radiographic and endoscopic investigations revealed a precardiac megaoesophagus and oesophageal constriction at the level of the heart base. At post-mortem examination, a specific form of persistent right aortic arch characterized by an aberrant left subclavian artery in combination with a ligamentum arteriosum originating at the aberrant left subclavian artery (PRAA-SA-LA) was detected. A complete-type persistent left cranial vena cava (PLCVC) was also observed...
January 3, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27990675/the-tongue-dorsal-surface-in-fish-a-comparison-among-three-farmed-species
#6
REVIEW
M Levanti, A Germanà, G Montalbano, M C Guerrera, M Cavallaro, F Abbate
The oral cavity of vertebrates has a very important role in many functions strictly related to the food processing. Two species, sea bass Dicentrarchus labrax and seabream Sparus aurata, are mainly involved in the aquaculture industry in the mediterranean area; moreover, the white seabream Diplodus sargus sargus was recently chosen as the best candidate for the diversification of species of commercial interest. This investigation was carried out, using the standard procedures for light and scanning electron microscopy, to analyse the morphology of the tongue dorsal surface in order to show whether relationships are present between the tongue morphology and the nutritional choices of these species...
December 19, 2016: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27990670/magnetic-resonance-imaging-study-of-adipose-tissues-in-the-head-of-a-common-dolphin-delphinus-delphis-structure-identification-and-influence-of-a-freezing-thawing-cycle
#7
M Arribart, J Ognard, C Guintard, F Domergue, S Hassani, D Ben Salem, J-L Jung
Magnetic resonance imaging (MRI) was used to scan the head of a common dolphin (Delphinus delphis) in order to visualize the different adipose tissues involved in echolocation functioning and to precisely delineate their anatomical topology. MRI scans were performed on the head taken from a freshly stranded carcass and repeated after a 2-week freezing time followed by thawing. The main fatty organs of the head, that is the melon, the mandibula bulba, the bursae cantantes, and their different connections with surrounding tissues were identified and labelled...
December 18, 2016: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27611647/immunohistochemical-localization-of-luteinizing-hormone-receptor-in-the-cyclic-gilt-ovary
#8
D Phoophitphong, S Srisuwatanasagul, P Tummaruk
Luteinizing hormone receptor (LHR) is a specific membrane receptor on the granulosa and theca cells that bind to luteinizing hormone (LH), resulting in androgen and progesterone production. Hence, the regulation of LHR expression is necessary for follicle maturation, ovulation and corpus luteum formation. We examined the immunolocalization of LHR in cyclic gilt ovaries. The ovaries were obtained from 21 gilts aged 326.0 ± 38.7 days and weighing 154.6 ± 15.7 kg. The ovarian tissues were incubated with rabbit anti-LHR polyclonal antibody...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27477545/seasonal-changes-in-the-immunolocalization-of-cytoskeletal-proteins-and-laminin-in-the-testis-of-the-black-backed-jackal-canis-mesomelas
#9
M-C Madekurozwa, D Booyse
Manipulation of the reproductive activity of jackals is dependent on a thorough understanding of the reproductive biology of this species. This study describes seasonal morphological changes in the adult testis of the black-backed jackal in relation to the immunoexpression of the basement membrane marker, laminin and the cytoskeletal proteins, cytokeratin, smooth muscle actin and vimentin. Laminin was immunolocalized in basement membranes surrounding seminiferous tubules, as well as in basement membranes associated with Leydig, peritubular myoid and vascular smooth muscle cells...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27457370/epididymis-of-viscacha-lagostomus-maximus-maximus-a-morphological-comparative-study-in-relation-to-sexual-maturity
#10
COMPARATIVE STUDY
A A M Cruceño, C I Aguilera-Merlo, E M Chaves, F H Mohamed
The morphological variations and the androgen receptor (AR) expression were studied in viscacha epididymis in relation to sexual maturity. The animals were divided into immature, pre-pubertal and adult, according to their corporal weight and testicular histology. The epididymides were studied by light microscopy, immunohistochemistry for AR and morphometric analysis. In pre-pubertal and adult animals, four well-differentiated segments (initial, caput, corpus and cauda) were observed, while in immature animals, three segments were identified (initial-caput segment, corpus and cauda)...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27282130/the-camel-rhinarium-a-study-revealing-the-presence-of-the-nasal-plane-in-dromedary-camel-camelus-dromedarius-with-special-reference-to-its-epidermal-structure
#11
E A Eshrah
The aim of this study was to prove that the nasal plane (Planum nasale) present in camel (Camelus dromedarius). Furthermore, it was the first description of the gross and primary microscopic anatomy as well as the epidermal ultrastructure of the camel nasal plane. Grossly, the camel rhinarium was formed of the glabrous grayish-black skin that extended to cover the philtrum and the medial nasal angles. It was composed of two perinasal parts and an inter-labial part. A shallow groove was passed across its middle...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27194445/myelin-sheath-development-in-the-maxillary-nerve-of-the-newborn-pig
#12
K V Papageorgiou, I Grivas, M Chiotelli, E Panteris, N Papaioannou, H Nauwynck, S K Kritas
Myelination, the ensheathing of neuronal axons by myelin, is important for the proper function of both central and peripheral nervous systems. Various studies have investigated the quantitative parameters of myelination in certain species. Pigs are among the species of which their use as laboratory animals in neuroscience research increased the past few decades. However, there is limited data regarding the myelination process in the pig. Moreover, the maxillary nerve is crucial for Pseudorabies Virus (PrV) neuropathogenesis...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27151887/anatomical-description-of-the-presence-and-variability-of-the-digital-manica-flexoria-in-the-equine-digital-flexor-tendon-sheath
#13
M Jordana, P Cornillie, M Oosterlinck, P Simoens, F Pille, A Martens
During endoscopy (tenoscopy) of the distal aspect of the equine digital flexor tendon sheath (DFTS), the digital manica flexoria can be visualized connecting the distal branches of the superficial digital flexor tendon. However, this structure has been inconsistently described and variably named in the veterinary literature. The objectives of this study were to describe the presence, configuration and variability of the digital manica flexoria in the equine distal limb. Dissection of 144 equine cadaveric limbs revealed the presence of this structure in all the feet, although different types and conformations were identified...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27114107/gender-related-differences-in-pelvic-morphometrics-of-the-retriever-dog-breed
#14
K Nganvongpanit, T Pitakarnnop, K Buddhachat, M Phatsara
This study presents the results from a morphometric analysis of 52 dry Retriever dog pelvic bones (30 male, 22 female). A total of 20 parameters were measured using an osteometric board and digital vernier caliper. Six parameters were found to be significantly higher (P < 0.05) in males than in females, while one parameter was significantly higher (P < 0.05) in females than in males. However, none of the measured parameters demonstrated clear cut-off values with no intersect between males and females...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/26990890/in-vitro-expression-of-the-extracellular-matrix-components-aggrecan-collagen-types-i-and-ii-by-articular-cartilage-derived-chondrocytes
#15
J Schneevoigt, C Fabian, C Leovsky, J Seeger, M Bahramsoltani
The extracellular matrix (ECM) of hyaline cartilage is perfectly suited to transmit articular pressure load to the subchondral bone. Pressure is transferred by a high amount of aggrecan-based proteoglycans and collagen type II fibres in particular. After any injury, the hyaline cartilage is replaced by fibrocartilage, which is low in proteoglycans and contains collagen type I predominantly. Until now, long-term results of therapeutic procedures including cell-based therapies like autologous chondrocyte transplantation (ACT) lead to a replacement tissue meeting the composition of fibrocartilage...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/26887671/the-hindlimb-myology-of-tyto-alba-tytonidae-strigiformes-aves
#16
M C Mosto
This work is the first myological dissection performed in detail on the hindlimb of Tyto alba. Six specimens were dissected and their muscle masses were obtained. T. alba has the classical myological pattern present in other species of Strigiformes, such as a well-developed m. flexor digitorum longus and the absence of the m. plantaris, flexor cruris lateralis and ambiens. Also, T. alba lacks the m. extensor propius digiti III, m. extensor propius digiti IV and m. lumbricalis, present in the Strigidae...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/26864348/histamine-receptor-expression-in-the-gastrointestinal-tract-of-dogs
#17
U Schwittlick, J Junginger, K Hahn, A Habierski, M Hewicker-Trautwein
Histamine is an important mediator of many physiological processes including gastrointestinal function that acts via four different histamine receptors (H1R to H4R). Elevated histamine levels and increased HR messenger ribonucleic acid (mRNA) have been shown in humans with gastrointestinal disorders such as irritable bowel syndrome or allergic intestinal diseases. As there is limited knowledge concerning the distribution of histamine receptors (HR) in dogs, one aim of this study was to investigate the expression of histamine 1 receptor (H1R), histamine 2 receptor (H2R) and histamine 4 receptor (H4R) in the canine gastrointestinal tract at protein level using immunohistochemistry...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/26786325/ultrastructural-and-cytochemical-properties-of-peripheral-blood-cells-of-piebald-naked-carp-gymnocypris-eckloni
#18
Z X Zheng, Y Tang, J Fang, X Peng, J D Fan, H M Cui, L Z Yang
The ultrastructural and cytochemical properties of peripheral blood cells of Gymnocypris eckloni were investigated by transmission electron microscopy and a range of cytochemical techniques to provide clear insight into the structure and function of blood cells from this fish. Ultrastructurally, erythrocytes, leucocytes (neutrophils, eosinophils, lymphocytes, monocytes), thrombocytes and plasma cells were identified in the peripheral blood of G. eckloni. The most special ultrastructural characteristics of blood cells in this fish were that neutrophils exhibited only one type of cytoplasmic granules containing an eccentric, spherical or oval electron-dense core, and eosinophils presented two types of granules with non-uniform electronic density and without crystalloids in their cytoplasm...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/26707368/multiple-corpora-lutea-in-dromedary-camels-are-they-associated-with-multiple-pregnancies
#19
A Ali
The aim of this study was to investigate whether multiple corpora lutea (CL) in dromedary camels were associated with multiple pregnancies. Three experiments were carried out. In the first experiment, reproductive tracts of 124 slaughtered female camels were examined for the incidence of multiple CL and the pregnancy status. In the second experiment, uteri and ovaries of 50 females were examined by ultrasound between the fourth and fifteenth weeks of pregnancy to estimate the number and location of the embryos/fetuses and the number of associated CL...
February 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/27102359/computed-tomography-of-the-normal-bovine-tarsus
#20
U Hagag, M Tawfiek, W Brehm, K Gerlach
The objective of this study was to provide a detailed multiplanar computed tomographic (CT) anatomic reference for the bovine tarsus. The tarsal regions from twelve healthy adult cow cadavers were scanned in both soft and bone windows via a 16-slice multidetector CT scanner. Tarsi were frozen at -20(o) C and sectioned to 10-mm-thick slices in transverse, dorsal and sagittal planes respecting the imaging protocol. The frozen sections were cleaned and then photographed. Anatomic structures were identified, labelled and compared with the corresponding CT images...
December 2016: Anatomia, Histologia, Embryologia
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