choroid plexus
CSF is produced in the brain by modified Ependymal_cellsin the Choroid_plexus(approx. 50-70%), and the remainder is formed around blood vessels and along ventricular walls..................................
Cerebrospinal fluid is formed from blood by the choroid. This is usually produced through the process of filtration of blood in the brain.
Spinal fluid (cerebrospinal fluid) is formed by the choroid plexus - modified blood vessels with a mossy appearance that line the floor of the lateral cerebral ventricles. The choioid plexus filters the blood and only lets the plasma through.
aorta and pulmonary artery
the major part of the CSF is produced in the brain by the ependymal cells in the choroid plexus. the rest is formed around blood vessels and along ventricular walls.
ussr
it was becaue
The aorta and the pulmonary arteries provide right and left ventricular afterload. Afterload is the resistance the blood loaded into the heart when it tries to leave.
Well, the theory right now is the majority of CFS is produced within the ventricles the choroid plexus produces by a combined process of diffusion, pinocytosis and active transfer of arterial blood and the rest is produced by modified ependymal cells of the choroid plexus.
Normally there are no red blood cells in cerebrospinal fluid, but some kinds of injuries can cause bleeding into the cerebrospinal fluid in which case there will be red blood cells.
The cranial cavity contains the brain, pineal and hypophysis cerebri, parts of the cranial and spinal nerves, blood vessels, meninges and cerebrospinal fluid.
Blood enters the coronary arteries just above the aortic semilunar valve. After systole (a ventricular contraction), the valve closes. The closing valve causes blood to back flow against the valve. At this time, the backward flow of blood enters into the coronary arteries.