3 Questions
What protects the central nervous system (CNS)?
Physical and chemical barriers
What can cause peripheral neuropathy?
Genetic, metabolic, inflammatory, infectious, or toxic conditions
What prevents nerve fibers from regrowing in the spinal cord?
Scar tissue
Study Notes
- The central nervous system (CNS) is protected by physical and chemical barriers.
- The brain and spinal cord are surrounded by tough meningeal membranes and enclosed in bones.
- The blood-brain barrier prevents most chemicals from entering the CNS.
- Damage to the CNS has more serious consequences than damage to the peripheral nervous system (PNS).
- Nerves can be damaged by physical trauma, swelling, or bruises.
- Peripheral neuropathy can be caused by genetic, metabolic, inflammatory, infectious, or toxic conditions.
- Nerves can temporarily lose function due to mechanical pressure, temperature changes, or chemical interactions.
- Spinal cord injuries can result in loss of sensation or movement.
- Scar tissue in the spinal cord prevents nerve fibers from regrowing.
- CNS protections make it less susceptible to damage, but damage can have serious consequences.
Test your knowledge of the central and peripheral nervous systems with this quiz! Learn about the physical and chemical barriers that protect the CNS, the causes and consequences of nerve damage, and the impact of spinal cord injuries. With keywords like CNS, PNS, neuropathy, and spinal cord injuries, this quiz is perfect for anyone looking to expand their understanding of the nervous system.
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