CNS Appendix B

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  1. Brain stem includes
    • Medulla oblongata
    • Pons
    • Midbrain
  2. Position of the medula oblongata
    Inferior, stem like position
  3. Cranial nerves in reference to the MO
    Abundance of nerve pairs near or extending out from the MO
  4. Important ventral surface landmarks of the MO
    Bilateral pyramids and olives
  5. MO is vital for
    Life-maintaining functions as breathing and cardiovascular control.
  6. Although small, the MO contains ALL
    Ascending and descending neuron fibers associated with the spinal cord
  7. Position of the pons
    Just superior to the MO
  8. Has a distinct ventral bulge
  9. Cranial nerve pair V (trigeminal) appears dramatically on its lateral surface
  10. Both form the ventral wall of the fourth brain ventricle
    Pons and MO
  11. Well adapted as an integration and relay center between the cerebellum and cerebrum
  12. Position of the midbrain
    Small area immediately surrounding thecerebral aqueduct
  13. What is the cerebral aqueduct
    A distinct passageway for cerebrospinal fluid between the third and fourth ventricles
  14. The area posterior to the cerebral aqueduct is collectively called the
  15. Ventral to the aqueduct are bilateral bulges called the
    Cerebral penducles (CP)
  16. Coordinates subtle reflexes dealing with head movements in seeing and hearing
    Midbrain (Mesencephalon)
  17. The CP are full of
    Important descending motor oriented fibers
  18. Simply a fluid filled space bounded by the thalamus and hypothalamus laterally
    Third ventricles
  19. What is the diencephalon
    Neuron relay center
  20. What does the diencephalon have control over?
    Many autonomic and endocrine functions
  21. Each hemisphere of the brain is divided into 4 major lobes, which are
    • Frontal
    • Parietal 
    • Temporal
    • Occipital
  22. Folds on the outer surface of the brain
  23. Gyri are formed by one of two things
    Sulci (shallow), or fissures (deep clefts)
  24. Largest lobes (about 35% of the cerebrum)
    Frontal lobes
  25. Major gyri of the frontal lobes include
    • Precentral gyrus
    • Superior/Middle/Inferior frontal gyri
  26. The frontal lobe is separated from the parietal lobe by
    The central sulcus (of Rolando)
  27. The frontal lobe is separated from the temporal lobe by
    The lateral cerebral sulcus (Sylvian sulcus)
  28. The corpus callosum is full of
    Neuron axons that connect R and L cerebral hemispheres
  29. Structures that connect equivalent halves of the CNS are often termed
  30. Our frontal lobes are best known for their role as
    "Thought elaborating" centers and voluntary motor initiating centers

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CNS Appendix B
2014-07-18 13:16:14
Appendix B
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