BIOL 3324 Lecture Notes - Lecture 8: Adrenergic, Glossopharyngeal Nerve, Prevertebral Ganglia
8 Oct 2016
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Document Summary
Cerebrospinal fluid: made in the choroid plexuses ependymal cells surround pia mater and blood vessel. Blood flow to cp is 10 times greater than blood flow to anywhere else. Parts of the pia mater that are associated with ependymal cells. Ependymal cells are found in the ventricles. The ventricles= cavities in the brain that are filled with. Csf and lined with ependymal cells: ependymal cells help insulate ecf from csf, there are four ventricles, regulated becf via direct mixing, ventricles subarachnoid space venous blood stream thru arachnoid villi and granulations. Facilitated by ciliary beating, posture, pressure: has more mg2+ ions than plasma, has less k+, amino acid, protein than plasma. Layers separate to form sinuses thru which: blood leaves the brain, and cns reenters the blood, arachnoid mater= middle layer. Arachnoid villi and granulations to reabsorb csf to the blood. Like one way valves for csf to exit to the blood due to pressure differentials.
