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Anatomia, Histologia, Embryologia

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https://www.readbyqxmd.com/read/29460451/muscles-and-fascial-elements-of-the-antebrachium-and-manus-of-the-african-elephant-loxodonta-africana-blumenbach-1797-starring-comparative-and-functional-considerations
#1
R M Nagel, G Forstenpointner, J T Soley, G E Weissengruber
The structure of the limbs of elephants is unusual among mammals. In African elephants (Loxodonta africana, Blumenbach 1797), the front limbs serve to support the greatest part of the body mass of the largest land animal. In this study, we present new and detailed anatomical data regarding muscular and specific fascial structures of the lower front limb which were examined by means of standard anatomical and histological techniques. The muscles and tendons of the forearm (antebrachium) and hand (manus) are tightly surrounded by thick, highly elastic fascial layers which fuse with the lacertus (lac...
February 19, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29460420/goat-milk-non-invasive-source-for-mammary-epithelial-cell-isolation-and-in-vitro-culture
#2
N Saipin, J Noophun, P Chumyim, R Rungsiwiwut
Mammary epithelial cells (MECs) used to study mammary gland function in vitro are typically isolated from mammary tissue. Breast milk offers an alternative source of MECs to replace mammary gland tissue. This study aimed to isolate and culture MECs from goat milk. Samples of fresh goat milk were collected from early and late-lactating Saanen goats. Samples were subjected to isolation, culture and characterization for putative MECs. The cells adhered to the culture dishes 1 day after isolation and displayed a monolayer pattern, epithelial-like cobblestone morphology, and formed alveoli-like structures that are typical of MECs...
February 19, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29460316/light-and-scanning-electron-microscopy-of-the-olfactory-mucosa-in-the-rufous-sengi-elephantulus-rufescens
#3
B M Kavoi
Sengis are eutherian insectivores belonging to superorder Afrotheria, a recently defined clade of mammals that diverged from other placentals over 100 million years ago. In this study, a histological and ultrastructural analysis was carried out on the olfactory mucosa (OM) of the rufous sengi (Elephantulus rufescens) and the data were compared with those reported earlier in the dog (Canis familiaris) and the sheep (Ovis aries), whose dietary lifestyles are carnivorous and herbivorous, respectively. Qualitatively, the microstructure of the sengi's OM was basically similar to that of the other eutherian mammals except for differences in the pattern of cilia projection from the dendritic knobs of the olfactory receptor neurons (ORNs) and distribution of Bowman's glands within the lamina propria of the OM...
February 19, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29322535/anatomy-of-the-upper-respiratory-tract-in-domestic-birds-with-emphasis-on-vocalization
#4
REVIEW
C Casteleyn, P Cornillie, S Van Cruchten, W Van den Broeck, C Van Ginneken, P Simoens
This work reviews the anatomy of the upper respiratory tract in domestic birds including the chicken and pigeon. Non-exhaustive additional information on other bird species, illustrating the extraordinary diversity in the biological class Aves, can be found in several footnotes. The described anatomical structures are functionally considered in view of avian sound production. In particular, the Syrinx is invaluable. Its most important structures are the Labia and the lateral and medial tympaniform membranes in non-songbirds and songbirds, respectively...
January 11, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29315753/localization-of-amylin-like-immunoreactivity-in-the-striped-velvet-gecko-pancreas
#5
H Suzuki, T Yamamoto
Immunohistochemical techniques were employed to investigate the distribution of amylin-like immunoreactive cells in the pancreas of gecko Homopholis fasciata. Four types of endocrine cells were distinguished: insulin immunoreactive (B cells), pancreatic polypeptide immunoreactive (PP cells), glucagon and pancreatic polypeptide immunoreactive (A/PP cells) and somatostatin immunoreactive cells (D cells). Pancreatic islets contained B, A/PP and D cells, whereas extrainsular regions contained B, D and PP cells...
January 8, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29314167/comparative-histomorphological-study-of-endometrium-in-mares
#6
M Herrera, J M Herrera, S Cantatore, J Aguilar, A Felipe, E Fumuso
Uterine acute post-breeding inflammation is a physiological tissue response to the entry of exogenous elements, with persistent endometritis being the main pathology responsible for subfertility in the mare (Equus ferus caballus; Linnaeus, 1758). Mares can be classified as susceptible or resistant to endometritis according to their ability to remove intrauterine fluid within 48 hr after experimental inoculation. Endometrial biopsy is a technique that is commonly used to establish the degree of lesions that can affect the fertility of the mare...
January 3, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29314148/3d-reconstruction-of-the-porcine-and-equine-pulmonary-veins-supplemented-with-the-identification-of-telocytes-in-the-horse
#7
T Vandecasteele, W Van Den Broeck, H Tay, L Couck, G van Loon, P Cornillie
The myocardial sleeve of the porcine and equine pulmonary veins were histologically investigated and reconstructed three dimensionally. Moreover, the localization of neuron cell bodies at the veno-atrial junction and alongside the myocardial sleeve was light microscopically visualized to depict the organization of nerve, myocardial and fat tissue. Finally, the presence of telocytes inside the equine pulmonary veins was demonstrated by use of transmission electron microscopy. These structures are thought to play a role in the induction of atrial fibrillation, which is frequently seen in horses, while pigs are often used as a cardiovascular model in this context...
January 3, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29277933/the-arrangement-of-the-coronary-artery-trunks-is-subject-to-inheritance-factors-a-study-in-syrian-hamsters
#8
M T Soto-Navarrete, J M Arqué, A C Durán, M C Fernández, M A López-Unzu, M Lorenzale, V Sans-Coma, B Fernández
The concept that anatomical variations in the coronary artery tree might be influenced by genes is relatively old. However, empirical evidence on the effect of genotype on the coronary morphology is still scarce. In the Syrian hamster, there is a septal coronary artery which arises from the left or from the right coronary artery and supplies most of the interventricular septum. The aim was to decide whether the anatomical origin of the septal artery is subject to inheritance factors. Overall, 483 internal casts of the heart and coronary arteries were examined...
December 25, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29250822/anatomy-of-the-lower-respiratory-tract-in-domestic-birds-with-emphasis-on-respiration
#9
REVIEW
C Casteleyn, P Cornillie, S Van Cruchten, W Van den Broeck, C Van Ginneken, P Simoens
This manuscript describes the anatomy of the lower respiratory tract in domestic bird species including the chicken and pigeon. The here described anatomical structures play a major role avian respiration, which is fundamentally different from respiration in mammals. During inspiration and expiration, a continuous caudocranial airflow is present within the tertiary bronchi of the Paleopulmo, while the Neopulmo, which is only present in phylogenetically recent species, is characterized by tidal respiration. Various anatomical structures and aerodynamic mechanisms have been described in an attempt to explain the proposed mechanism of respiration...
December 17, 2017: Anatomia, Histologia, Embryologia
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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/29377284/peer-reviewers
#16
REVIEW
(no author information available yet)
No abstract text is available yet for this article.
February 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29152785/ultrastructure-of-plasma-cells-in-harderian-gland-of-laying-hens
#17
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
#18
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
#19
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
#20
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
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