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ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

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What are the three layers of connective tissue coverings that surround the spinal cord and brain?
  1. White matter
  2. Gray matter
  3. Neuron membrane
  4. Meninges
Explanation
Answer: C - Meninges are the three layers of connective tissue coverings that surround the spinal cord and brain. The outermost layer is dura mater. Arachnoid is the middle layer, composed of collagen and elastic fibers. The pia mater is the inner layer that is composed of collagen and elastic fibers that adhere to the surface of the spinal cord and brain.
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