(Bainbridge, 38) Rich in sodium, potassium, and chloride ions, but has almost no protein. Forms a protective cushion for the brain and spinal cord. (Patestas, 95) Because the fluid leaks out under the meninges, there is also a thin layer of fluid surrounding the brain. In fact, the brain actually floats in this shock-absorbing fluid (because) the organ has few direct connections with the skull around it.
http://www.richardsonthebrain.com/central-nervous-system
1 Example of Nervous Tissue Within the Nervous System Nervous tissue is a large component of the entire nervous system. 2  Examples of nervous tissue include the brain, spinal cord, and the peripheral nervous system. 3  All of these s….
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Ventral roots only have efferent fibers that arise from motor neurons (general somatic efferent neurons) whose cell bodies are found in the ventral (or anterior) gray horns of the spinal cord. The spinal cord (and brain) are protected by three layers of tissue or membranes called meninges, that surround the canal. The dura mater is the outermost layer, and it forms a tough protective coating. Between the dura mater and the surrounding bone of the vertebrae is a space called the epidural space.
https://en.wikipedia.org/wiki/Spinal_cord
It primarily affects people in their 50s, 60s, and 70s. Bacterial meningitis, an infection of the protective layers of tissue, or meninges, that surround the brain and spinal cord. Symptoms of bacterial meningitis include headache, fever, neck stiffness, nausea, vomiting, and confusion. Neurosyphilis, an infection of the brain or spinal cord. Neurosyphilis is different from syphilis, a sexually transmitted disease, because it affects the nervous system. But people with untreated syphilis are susceptible to neurosyphilis.
http://www.urmc.rochester.edu/encyclopedia/content.aspx?ContentTypeID=167&ContentID=lactate_dehydrogenase_csf
Meninges: the three connective tissue membranes that line the skull and “vertebral canal” and enclose the brain and spinal cord. (OxfordMed) Three more or less concentric membranes. (Patestas, 84) The three thin layers of tissue that cover and protect the brain and spinal cord.
http://www.richardsonthebrain.com/central-nervous-system
+ 3 others found this useful. Walter Carlson. 1  Example of Nervous Tissue Within the Nervous System Nervous tissue is a large component of the entire nervous system. 2  Examples of nervous tissue include the brain, spinal cord, and the peripheral nervous system.
http://www.answers.com/Q/The_three_layers_of_connective_tissue_around_the_brain_and_spinal_cord_are_called_the
Dura Mater: the thickest and outermost of the three meninges surrounding the brain and spinal cord. Consists of two layers. (OxfordMed) Outermost, dense, irregular connective tissue. (Patestas, 84) A fibrous membrane of connective tissue that covers the brain and the spinal cord. (MeSH) Most fibrous of the three meninges that surround and protect the brain and spinal cord.
http://www.richardsonthebrain.com/central-nervous-system
Together, the three layers of connective tissue that protect the  brain and spinal cord are called the cerebral meninges. The three  layers of the meninges are the pia mater … , arachnoid mater, and dura  mater. 4 people found this useful.
http://www.answers.com/Q/The_three_layers_of_connective_tissue_around_the_brain_and_spinal_cord_are_called_the
CSF is the clear liquid that surrounds the brain and spinal cord. Enzymes are catalysts, or chemicals in your tissues and organs that cause the reactions necessary to provide energy to your cells.
http://www.urmc.rochester.edu/encyclopedia/content.aspx?ContentTypeID=167&ContentID=lactate_dehydrogenase_csf
The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column.
https://en.wikipedia.org/wiki/Spinal_cord
what are the protective layers of tissue that surround the brain and spinal cord
Nervous tissues are the protective layers of tissue that surround the brain and spinal cord.