Brain Anatomy Overview
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Questions and Answers

Which part of the brain coordinates motor activity, both subconscious and skilled?

  • Brain stem
  • Hypothalamus
  • Cerebellum (correct)
  • Cerebrum
  • What is the function of the hypothalamus?

  • Coordinate voluntary initiation of movement
  • Control homeostatic functions (correct)
  • Perform primitive sensory processing
  • Control motor activity
  • Which part of the brain is continuous with the spinal cord and controls life-sustaining processes like respiration and circulation?

  • Cerebellum
  • Cerebrum
  • Thalamus
  • Brain stem (correct)
  • What connects the two hemispheres of the cerebrum, allowing them to communicate?

    <p>Corpus callosum</p> Signup and view all the answers

    Which type of matter in the CNS consists of densely packaged neuronal cell bodies and their dendrites, as well as glial cells?

    <p>Gray matter</p> Signup and view all the answers

    Which part of the brain is responsible for conscious thought, language, and personality?

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

    Which layer of the meningeal membranes closely adheres to the surface of the brain and spinal cord?

    <p>Pia mater</p> Signup and view all the answers

    Where is cerebrospinal fluid (CSF) formed in the brain?

    <p>Choroid plexuses</p> Signup and view all the answers

    Which brain region plays a significant role in maintaining the blood-brain barrier (BBB)?

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

    What is the function of the subarachnoid space in the meningeal membranes?

    <p>Filled with CSF</p> Signup and view all the answers

    Which substance is exchanged between the interstitial fluid and cerebrospinal fluid (CSF), but not with blood?

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

    What is the main function of ependymal cells in relation to cerebrospinal fluid (CSF) in the brain?

    <p>Formation of CSF</p> Signup and view all the answers

    What is the process by which cerebrospinal fluid (CSF) reaches the dural sinuses for reabsorption?

    <p>Selective transport across membranes</p> Signup and view all the answers

    Which brain region includes the Hypothalamus and Thalamus?

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

    Why does the brain require a constant blood supply?

    <p>It uses 50% of the oxygen consumed by the body at rest.</p> Signup and view all the answers

    How is the brain organized from bottom to top?

    <p>By complexity and sophistication of function</p> Signup and view all the answers

    Why is the brain considered an 'inefficient, lazy tyrant' according to the text?

    <p>It does not store excess glucose for energy needs.</p> Signup and view all the answers

    What type of metabolism can the brain not resort to for producing ATP without oxygen?

    <p>Anaerobic metabolism</p> Signup and view all the answers

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