MULTIPLE CHOICE 1 The nervous system is comprised of which two divisions? C. sym

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MULTIPLE CHOICE 1 The nervous system is comprised of which two divisions? C. sympathetic and parasympathetic D. central and peripheral A. afferent and efferent B. somatic and autonomic The central nervous system is comprised of the A. somatic and autonomic divisions C. brain and spinal cord D. visceral and peripheral divisions B. efferent and afferent divisions 3. Which of the following is not a function of the nervous system? A. monitors the internal and external environments B. integrates sensory information C. coordinates voluntary responses from many organ systems D. coordinates only involuntary responses of many organ systems 4· The efferent division of the peripheral nervous system is comprised of which two divisions? A. afferent and efferent C. somatic and autonomic D. autonomic and afferent B. sympathetic and parasympathetic impulses carry information from the peripheral nervous systern to the cent nervous system. A. Efferent C. Afferent D. Autonomic B. Somatic (6) Which of the following is not part of a neuron? C. dendrite D. axon A. astrocyte B. cell body 7. Which of the following gives the gray color to the cell body areas? A. axon hillock B. collaterals C. Nissl bodies D. dendrite 8. Which of the following best describes a bipolar neuron? A. two dendrites with a single axon B. one dendrite and one axon with a cell body C. dendrite and axon are continuous with the cell body D. four dendrites with a single axon (9 Neurons are typically sorted into three functional groups. Which of the following i one of those groups? A. interneuron B. sensory C. motor D. collateral 10 Neurons are classified based on their structure as A. motor, sensory, interneurons B. multipolar, bipolar, unipolar C. afferent, efferent, interneurons D. peripheral, central, somatic 11 The blood-brain barrier is an essential part of isolating the brain from the general circulation. Which one of the following neuroglial cells is responsible for this? A. astrocytes B. oligodendrocytes C. microglia D. ependymal

Explanation / Answer

1.D Central and peripheral 2.C. Brain and spinalcord 5.C. Afferent fibers 6.A Astrocyte 9.D. Collateral 10.B unipolar,bipolar ,multipolar 11.A astrocytes 14.B myelin sheath 17.D Depolarisation 21.B Saltatory propagation 25 D pia,arachnoid,dura 26C epidural 27.B anterior 28.B midbrain,pons ,medulla 29.C pituitary gland 30.C medulla oblongata 31.B gyri 32.B parietal

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