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Questions and Answers

Which part of the neuron sends signals to specific target cells over long distances?

  • Cell body
  • Dendrites
  • Synapses
  • Axons (correct)

What is the function of glial cells in the brain?

  • Sending signals to target cells
  • Structural support (correct)
  • Generating patterns of muscle activity
  • Processing sensory input

Which part of the brain controls executive functions?

  • Prefrontal cortex (correct)
  • Spinal cord
  • Cerebral cortex
  • Peripheral ganglia

What is the primary function of the brain?

<p>Centralized control over the body's organs (C)</p> Signup and view all the answers

Which of the following is the correct definition of an action potential?

<p>An electrochemical pulse that travels along the axon (C)</p> Signup and view all the answers

What is the primary function of synapses in the brain?

<p>To transmit signals from one neuron to another (D)</p> Signup and view all the answers

What is the estimated number of synapses in the human brain?

<p>100 trillion (B)</p> Signup and view all the answers

What is the function of myelin in the brain?

<p>To increase the speed of signal propagation (A)</p> Signup and view all the answers

Which part of the nervous system is responsible for complex sensory perception, motor control, endocrine regulation, and the development of intelligence?

<p>The forebrain (C)</p> Signup and view all the answers

Where is the brain typically located in the body?

<p>In the head (A)</p> Signup and view all the answers

What is the largest cluster of neurons in the body?

<p>The brain (C)</p> Signup and view all the answers

Which part of the brain is responsible for complex sensory perception, motor control, endocrine regulation, and the development of intelligence?

<p>Forebrain (C)</p> Signup and view all the answers

Where is the brain typically located in the body?

<p>Head (C)</p> Signup and view all the answers

Which part of the brain contains the largest cluster of neurons in the body?

<p>Cerebral cortex (D)</p> Signup and view all the answers

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