The embryonic arches develop in the fourth and fifth gestational weeks with the corresponding pharyngeal arch arteries connecting the aortic sac with the dorsal aorta. The fourth arch forms the aorta; the left sixth arch forms the left pulmonary artery and duct. The fifth aortic arch is a transient developmental structure in humans as there is no 5th pharyngeal arch; indeed, its existence has, ...

OBJECTIVE Implants are being used in orthodontics as a reliable mode of anchorage. Among other factors, the cortical bone thickness plays a major role in determining the stability of these implants. The objective of this study was to study the relationship of various arch forms and the cortical bone thickness and to determine if the cortical bone thickness varies between various arch forms. Thi...

Overexpression of Hoxa2 in the chick first branchial arch leads to a transformation of first arch cartilages, such as Meckel's and the quadrate, into second arch elements, such as the tongue skeleton. These duplicated elements are fused to the original in a similar manner to that seen in the Hoxa2 knockout, where the reverse transformation of second to first arch morphology is observed. This co...

AIMS To investigate the role of the geometry of the aortic arch in resting hypertension after successful repair of coarctation (CoA). METHODS AND RESULTS 105 patients (15.3+/-6 years) with successful repair of aortic CoA underwent blood pressure (BP) measurements at rest and magnetic resonance imaging (MRI) of the aortic arch and left ventricle. Three categories of aortic arch shape were defi...

1890 1. Die SehstSrungen nach Verletzung der Grosshimrinde. Nach Versuchen am Hunde. I, Arch. ges. Physiol., 1884, xxxiv, 67-114. 2. Die Sehst6rungen nach Verletzung der Grosshirnrinde. Nach Versuchen am Hunde. II. Die Natur der Sehst6rungen, Arch. ges. Physiol., 1884, xxxiv, 115-172. 3. Die elementaren St6rungen einfacher Funktionen nach oberfl~chlicher, umschriebener Verletzung des Grosshirns...

BACKGROUND In total arch repair with open placement of a triple-branched stent graft for acute type A aortic dissection, the diameters of the native arch vessels and the distances between 2 neighboring arch vessels did not always match the available sizes of the triple-branched stent grafts, and insertion of the triple-branched stent graft through the distal ascending aortic incision was not ea...

OBJECTIVE : Evaluate the probable relationship among plantar arch, lumbar curvature, and low back pain. METHODS : Fifteen healthy women were assessed taking in account personal data and anthropometric measurements, photopodoscopic evaluation of the plantar arch, and biophotogrammetric postural analysis of the patient (both using the SAPO software), as well as evaluation of lumbar pain using a...