branchial arches
Syndromes of the First and Second Branchial Arches, Part 2: Syndromes
... truding. Auricular anomalies include absent EAC, middle ear malformations, and pinna deformities. Craniofacial radio- logic abnormalities include hypoplastic or aplastic zygomatic arches, choanal shortening, ...
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Syndromes of the First and Second Branchial Arches, Part 1: Embryology and Characteristic Defects
... due to a relatively rapid and orderly composition of mesoder- mal and cranial neural crest cells via a complex signaling net- work. Syndromes of the first and second BAs manifest along a spectrum of hypoplasia and ...
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Integration of swimming kinematics and ram suspension feeding in a model American paddlefish, Polyodon spathula
... conditions changed slightly as particles were captured in the model, video color and ImageJ threshold settings were changed in some trials to compensate. Care was taken in the analysis of mechanized trials to use frames ...
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The isolation and testing of candidate genes for DiGeorge syndrome
... The branchial arches are first visible during the fourth week of human development and consist of a core of mesenchyme that is covered by endoderm. Movement of neural crest cells into [r] ...
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Branchial cleft anomalies: a pictorial review of embryological development and spectrum of imaging findings
... The branchial arches develop between the fourth and seventh week of gestation and form the embryological precursors of the ear and muscles, blood vessels, bones, cartilage and mu- cosal lining of the face, ...
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A Rare Case of Stridor with a Right Sided Aortic Arch in a Libyan Patient
... of branchial arches which become transferred into the permanent major vessels (the aorta and its main branches) during the fifth to the seventh week of embryologic ...of arches. The fourth ...
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Chick Lrrn2, a novel downstream effector of Hoxb1 and Shh, functions in the selective targeting of rhombomere 4 motor neurons
... the branchial arches, and only in the neuro- genic r4-derived neural crest [2,72], any normal regula- tion of the mesodermal expression of Lrrn2 must be indirect and involve an unknown secreted signal, with ...
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The Late Jurassic ray Kimmerobatis etchesi gen et sp nov , and the Jurassic radiation of the Batoidea
... br- branchial arches, c- vertebral centra, c5- fifth ceratobranchial, co- coracoid bar, ha- haemal arch, hm- hyomandibula, ib- ischiopubic bar, ls- lateral stay, mc- median crest, mk- Meckel’s cartilage, ...
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Temporal requirement of Hoxa2 in cranial neural crest skeletal morphogenesis
... posterior branchial arches, respectively, do express various combinations of Hox genes (Hunt et ...to branchial arch derivatives first became evident with the targeted inactivation of Hoxa2 in the ...
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Hemifacial Microsomia: A Mini Review
... second branchial arches characterized by mandibular underdevelopment and unilateral or bilateral microtia; although, other facial structures may be ...
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Hoxa2 downregulates Six2 in the neural crest derived mesenchyme
... and branchial arches), and, at the endpoint of migration, they form the different skeletal elements, each with a precise shape and in a precise position (reviewed by Chambers and McGonnell, 2002; Gammil and ...
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Behaviour Of Strengthened Masonry Arches With Steel Reinforced Grout
... masonry arches was ...nine arches were tested by means of load control up to the point of ...masonry arches strengthened using steel mesh with spandrel fill form the basis for numerical ...
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Minimum thickness of semi-circular skewed masonry arches
... skewed arches (45° angle of skew) constructed using the helicoidal and logarithmic method, the critical friction angle to avoid sliding is ...skew arches constructed using the helicoidal and logarithmic ...
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The static and dynamic stability of clamped shallow circular arches
... THE STATIC AND DYNAMIC STABILITY O F CLAMPED SHALLOW CIRCULAR ARCHES.. California Institute of Technology Pasadena, California..[r] ...
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The effect of skew angle on the mechanical behaviour of masonry arches
... In recent years, sophisticated methods of analysis like Finite Element Method (FEM) have been applied to understand the three dimensional behaviour of arches (Choo & Gong 1995). A nice overview of the ...
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Anatomical variations of the superficial and deep palmar arches
... It is interesting to note that many authors [3, 5–7, 9, 15, 19, 21, 23] have tried to explore the anatomy and morphology of the superficial and deep palmar arches and very few have reported similar results and ...
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An anatomical investigation of the superficial and deep palmar arches
... This study aimed to acquire a greater understand- ing of the variability of the formation and branching patterns of the SPA and DPA. Both the complete and incomplete types of SPA ascertained were classified into the ...
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Variations of the superficial palmar arches: A cadaveric study
... A total of 14 cadavers of both sexes (13 men and 1 women) with different age group were used for the study. Upper limb regions(28 sides) of the cadavers were carefully dissected as per the standard dissection procedure ...
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Width of dental arches in patients with maxillary midline diastema
... dental arches than in Caucasians ...dental arches widths in Chinese population and diastema group showed that the results of those two groups were similar for molar upper and lower dental arch widths and ...
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Expression of protocadherin 18 in the CNS and pharyngeal arches of zebrafish embryos
... ABSTRACT Here, we report the results of molecular cloning and expression analyses of a non- clustered protocadherin (pcdh), pcdh18 in zebrafish embryos. The predicted zebrafish pcdh18 protein shows 65–66% identity and ...
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