Autonomic Functions of the Brain
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Questions and Answers

Which part of the brain influences blood pressure and heart rate by causing arteries and veins to be somewhat constricted?

  • Cerebrum
  • Hypothalamus
  • Cerebellum
  • Medulla (correct)
  • Where is information about blood pressure generated by baroreceptors in the body?

  • Medulla
  • Pons
  • Aortic bodies (correct)
  • Carotid sinus
  • Which nerve is responsible for passing information about blood pressure changes in the carotid sinus to the brain?

  • Trigeminal nerve
  • Vagus nerve
  • Glossopharyngeal nerve (correct)
  • Facial nerve
  • What nerve carries sensory information back to the respiratory centres in the brain?

    <p>Phrenic nerve</p> Signup and view all the answers

    Where are the respiratory centres mainly located in the brain?

    <p>Medulla and pons</p> Signup and view all the answers

    Which part of the brain is responsible for influencing vein and artery constriction based on signals from the solitary nucleus?

    <p>Medulla</p> Signup and view all the answers

    What is the role of the dorsal respiratory group in the medulla?

    <p>Causes the desire to breathe in</p> Signup and view all the answers

    How are blood oxygen, carbon dioxide, and pH levels sensed by the respiratory centers?

    <p>Transmitted through the vagus and glossopharyngeal nerves</p> Signup and view all the answers

    What influences the duration of each breath in the pons?

    <p>Pneumotaxic centre</p> Signup and view all the answers

    Which brain region is responsible for regulating functions like blood pressure, heart rate, and breathing?

    <p>Hypothalamus</p> Signup and view all the answers

    How does sleep impact the body's energy consumption?

    <p>Reduces energy consumption</p> Signup and view all the answers

    What is the function of orexinergic neurons located in the lateral hypothalamus?

    <p>Control appetite and arousal</p> Signup and view all the answers

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