... Abstract Through the 20th century, the embryonic heart tube was thought to consist of the adult cardiac components in their primordial form. We now know this is not the case and that the early heart contains little more than the precursor cells for the left ventricle or even less, whereas cells...

... and hydrocephalus. The traditional view of cerebrospinal fluid (CSF) physiology is that it is produced by the choroid plexus in the ventricles and flows out the foramina of Luschka and Magendie eventually to be absorbed by the arachnoidal granulations and villi on either side of the superior sagittal sinus...

... hypertension. MRI provides excellent 3-dimensional imaging, allowing for measurements of right ventricle volume and mass with great accuracy. In addition, it provides a tool to measure pulmonary artery flow. CT scanning is currently mainly used for the detection of underlying lung disease and the diagnosis...