Neurology > QUESTIONS & ANSWERS > The Nervous System QUESTIONS AND ANSWERS 100% CORRECT (All)

The Nervous System QUESTIONS AND ANSWERS 100% CORRECT

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Central nervous system (CNS) Correct Answer: Nervous system subdivision that is composed of the brain and spinal cord. Somatic nervous system Correct Answer: Subdivision of the PNS that controls vo ... luntary activities such as the activation of skeletal muscles. Peripheral nervous system (PNS) Correct Answer: Nervous system subdivision that is composed of the cranial nerves and spinal nerves. Autonomic nervous system Correct Answer: Subdivision of the PNS that regulates the activity of the cardiac muscle, smooth muscle, and glands. It is also called the involuntary nervous system because it controls body activities automatically. It is very Important in maintaining homeostasis for the body. Neuroglia Correct Answer: Cells that support, insulate, and protect neurons. These cells are able to divide and are usually involved in brain tumors. Neurons Correct Answer: Cells that transmit electrical message from one area of the body to another area. Axon Correct Answer: End of neuron that releases neurotransmitters away from the cell body. Dendrite Correct Answer: End of neuron that conducts electrical currents toward the cell body. Myelin Correct Answer: White, fatty material that covers long nerve fibers, protecting and insulating the fibers, as well as Increasing the speed of impulse transmission. Cell body Correct Answer: Location of the nucleus in a neuron. Schwann cells Correct Answer: Specialized cells that myelinate the fibers of neurons found in the PNS. [Show More]

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