Most brain tumors are caused by:
Correct answer: C. Neuroglial cells
- A. Neurons
- B. Leydig cells
- C. Neuroglial cells
- D. Schwann cells
Explanation
Glioma is a common type of tumor originating in the brain. About 33 percent of all brain tumors are gliomas, which originate in the glial cells that surround and support neurons in the brain. Astrocytes, oligodendrocytes, and ependymal cells are some of the types of glial cells.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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