How does the locus coeruleus (LC) make the neurons of the cerebral cortex more responsive to salient sensory stimuli? Choose the correct option
A) Increasing sensitivity at the neuromuscular junction
B) Recruiting more LC neurons
C) Inhibiting neurons of the raphe nuclei
D) Speeds information processing by the point-to-point sensory and motor systems
Ans: D
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At the local skateboard park, a skater takes a header in the half pipe. He didn't have a helmet on, and is lying on his back confused and not able to move. As a First Aider, you should:
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What happens to a muscle during a concentric contraction?
a. The muscle shortens to overcome the resistance. b. The muscle movement is stalled c. The muscle movement accelerates. d. The muscle lengthens to overcome the resistance. e. The muscle movement decelerates.
All of the following are signs or symptoms of hyperthyroidism EXCEPT
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