Doppler echocardiogram provides not only structural information about heart chambers, valves and pericardium but also contributes to functional assessment. A unique feature of this assessment is its variability, not only due to heart disease course but also related to extracardiac conditions. We present...
Affected people can develop a hole in the wall of the heart. It mostly develops on the wall separating the lower chambers of the heart. The condition is referred to as a ventricular septal defect. The small hole may not cause any symptoms. But, larger ones can make the heart and lungs ...
Birds (like all vertebrates) have two tubes running down the ventral aspect of the neck (i.e. below the vertebrae): the trachea, for breathing, and the oesophagus, for swallowing. But these both open into the back of the mouth and are not piped up past it. I’ve not dissected enough...
As soon as I saw that, I found myself thinking that it would look nice with some shading of the bone. Of course the existing stippling is a perfect guide to how dense the shading should be at each point, so I figured there had to be an easy way to do this automatically. There is...
No real standards existed, and each studio took a “roll-your-own” approach. This lack of standards and the attendant incompatibility of disc versus optical sound tracks, and even variances in how sound-head light valves would be implemented, meant that films using rival production ...
The four chambers of the heart are the right atrium, left atrium, right ventricle, and left ventricle. Each of the chambers of the...