Concept explainers
B.
To describe: The brain tissues having tight junctions.
Introduction: The neural tube expands and forms ventricles. The cerebrospinal fluid fills the ventricles, and the ependymal cells present within the choroid plexus line the ventricles. The term “choroid” indicates “vascular coat”, and “plexus” indicates “network”.
C.
To describe: How the reduced diffusion through the arachnoid granulations influences the volume of cerebrospinal fluid present in the ventricles.
Introduction: The cerebrospinal fluid (CSF) is a clear and colorless fluid surrounding the exposed surfaces of the central nervous system (CNS). The arachnoid granulations are otherwise called arachnoid villi, the place where the cerebrospinal fluid is taken up into the venous circulation.
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