Biology Chapter 8.1 Word Scramble
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| Question | Answer |
| The principal organ of the nervous system. | brain |
| A thick bundle of nerve fibers located within the spinal cavity. | spinal cord |
| 31 pairs of nerves at intervals along the spinal cord that branch from the cord and extend out of the spinal cavity through the gaps between the vertebrae. | spinal nerves |
| 12 pairs of nerves that branch directly from the brain stem and transmit nerve signals to and from the eyes, ears, mouth, face, and scalp. | cranial nerves |
| A triple layer protective tissue. | meninges |
| A clear fluid that circulates through the fibers of the arachnoid, serving to cushion the brain when you bump your head. | cerebrospinal fluid |
| Support and insulate nerve tissue. | glial cells |
| nerve cells | neurons |
| White, specialized covering. | myelin |
| A mass of cell bodies. | ganglion |
| A large nerve mass. | plexus |
| A group of cell bodies in the brain or spinal cord. | nerve center |
| Tightly sealed capillary walls that protects the central nervous system from being permanently damaged every time you get sick. | blood-brain barrier |
| A disease when invading microorganisms enter the nerve tissue and infect the meninges. | meningitis |
| A state of prolonged unconsciousness; serious brain damage can also result. | coma |
| A serious disease that attacks the spinal cord. | poliomyelitis |
| Bundles of nerve fibers branching from the brain and spinal cord and connecting the central nervous system to the extremities of the body. | nerve |
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