PSYC 211- Midterm 1 Review

Which of the following statements about the blood

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Unformatted text preview: ered a difference between oligodendrocytes and Schwann cells? a)  An oligodendrocyte can form several myelin segments while a Schwann cell only forms one segment b)  The myelin protein of oligodendrocytes is different from that of Schwann cells c)  The oligodendrocytes are found in the CNS and the Schwann cells in the PNS d)  Schwann cells help with axon guidance during regrowth of axons but oligodendrocytes do not e)  Schwann cells are responsible for the inflammatory reac1on aRer brain damage; oligodendrocytes are not 4. Which of the following statements about the blood- brain barrier is incorrect? a)  It protects the brain from chemicals that get into the blood b)  It helps to maintain the extracellular ion concentra1ons of CNS neurons c)  It is uniform throughout the CNS d)  It is formed by the walls of the capillaries in the brain e)  It was discovered by the injec1on of a blue dye into the blood stream 4. Which of the following statements about the blood- brain barrier is incorrect? a)  It protects the brain from chemicals that get into the blood b)  It helps to maintain the extracellular ion concentra1ons of CNS neurons c)  It is uniform throughout the CNS d)  It is formed by the walls of the capillaries in the brain e)  It was discovered by the injec1on of a blue dye into the blood stream 5. Which of the following properly describes what happens when the brain inhibits the withdrawal reflex? a)  A pain neuron excites an interneuron, which excites a motor neuron, which causes contrac1on of the muscle b)  A pain neuron excites an interneuron...
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This document was uploaded on 02/16/2014.

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