The septum secundum is a muscular flap that is important in heart development. It is semilunar in shape, and grows downward from the upper wall of the...

The foramen secundum or ostium secundum is a foramen in the septum primum, a precursor to the interatrial septum of the human heart. It is not the same...

of the septum primum, the septum secundum begins to form. This thick, muscular structure initially takes on the same crescent shape as the septum primum...

passageway between the septum secundum and the ostium secundum. Initially the atria are separated from one another by the septum primum except for a small...

fusion of the septum primum and the septum secundum; in healthy hearts, this fusion form the fossa ovalis, a portion of the interatrial septum which corresponds...

the septum primum; this opening is known as the foramen ovale (ostium secundum of Born) and persists until birth. A second septum, the septum secundum, semilunar...

appear in the superior part of the septum primum, forming the ostium secundum (from Latin 'second opening'). The septum primum will eventually form part...

in part of the septum primum die creating a hole while muscle cells, the "septum secundum", grow along the right atrial side the septum primum, except...

(the ostium secundum) begins to form in the upper atrium enabling the continued shunting of blood. A second septum (the septum secundum) begins to form...

a new fold appears, called the septum secundum. At its right side it is fused with the left venous valve and the septum spurium. A free opening will then...

called the septum secundum. The free edges of the septum secundum produce an orifice called foramen ovale, which closes after birth when the septum primum...

ovale becomes the fossa ovalis as the foramen closes while edge of the septum secundum in right atrium becomes anulus ovalis, so the depression beneath it...

atrium, producing an increase in pressure that pushes the septum primum against the septum secundum, closing the foramen ovale and completing the separation...

system septal cartilage septal nuclei septal vein septum septum pellucidum septum primum septum secundum serous serous membrane serous pericardium sesamoid...

plates lower limb buds implementation embryo in posterior uterus wall septum secundum Ectoderm: sensory placodes, lens pit, otocyst, nasal pits moved ventrally...

foramen lies beneath the edge of septum primum and the endocardial cushions. It progressively decreases in size as the septum grows downwards, and disappears...

The ostium primum atrial septal defect is a defect in the atrial septum at the level of the tricuspid and mitral valves. This is sometimes known as an...

DNA-templated histone H3-K36 methylation atrial septum secundum morphogenesis methylation atrial septum primum morphogenesis regulation of establishment...

congenital heart disease, abnormal ventral folding, and defects in the cardiac septum separating the atria and ventricles, and hypoplasia of the ventricular myocardium...

Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primum) that will eventually close...

differentiation positive regulation of cardioblast differentiation septum secundum development atrial cardiac muscle cell development cell differentiation...

posteriorly from the toothrow. T. kabomani skulls also lack both a nasal septum and dorsal maxillary flanges. The skull possesses a meatal diverticulum...

Side view of a Spirula shell Ventral view; the siphuncle and the last septum of the phragmocone are visible Swedish botanist Carl Linnaeus described...

that house the eyeballs are large and separated from each other by a bony septum (partition). The spine has cervical, thoracic, lumbar and caudal regions...

auditory bullae are double-chambered, composed of two bones joined by a septum. Caniforms have single-chambered or partially divided auditory bullae, composed...

the two species are roughly the same. The nostrils are not divided by a septum, but rather are perforate; from the side one can see through the beak. It...

Augusto; Andrade, Denis; Perry, Steven (2003). "Structure of the posthepatic septum and its influence on visceral topology in the tegu lizard, Tupinambis merianae...

birds: The right atrioventricular valve is fixed to the interventricular septum, by a thick muscular stock, which prevents back-flow of blood into the atrium...

belong to the superfamily Poromyoidea and are carnivorous, having a muscular septum instead of filamentous gills. In May 2010, a new taxonomy of the Bivalvia...

pattern of triangles and horizontal lines. Inside is white to light gray, septum narrow, and its edge curved and tinged yellow. Sexual dimorphism in the...