BIOL 223 Chapter 14-1

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BIOL 223 Chapter 14-1
2011-11-20 16:54:59
anatomy physiology brain

Study Cards for Chapter 14 BIOL 223 CSN
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  1. What names are given to the folds and grooves on the surface of the cerebral cortex?
    • gyri - folds
    • sulci - grooves
  2. What is the purpose of the folds and grooves on the surface of the cerebral cortex?
    to increase surface area allowing for more information storage and processing
  3. The subdivisions of the cerebrum which loosely correspond to the bones of the skull are called:
  4. List the three meningeal layers in order from outside to inside.
    • dura mater
    • arachnoid mater
    • pia mater
  5. Dura mater is comprised of which type of tissue?
    dense fibrous connective tissue
  6. Arachnoid mater is comprised of which types of fibers?
    collagen and elastic
  7. Where would you find the endosteal layer of the dura mater?
    on the outer surface adhereing to the cranial bones
  8. The space where blood that flows through the brain is returned to circulation is known as the:
    dural sinus
  9. The innermost layer of the dura mater is known as the:
    meningeal layer
  10. Where will you find the subarachnoid space?
    just beneath the arachnoid membrane
  11. What is the purpose of the arachnoid space?
    it is where the cerebrospinal fluid flows
  12. The pia mater sticks to the brain surface by means of cells called:
  13. What type of cells form the blood-brain barrier?
  14. What is the purpose of the blood-brain barrier?
    to create a permeability barrier which regulates which substances are able to move from the blood into the brain
  15. True or False: Glucose can be moved into the brain by means of active transport.
  16. True or False: Proteins and antibiotics can cross into the brain by means of diffusion.
    False - proteins and antibiotics cannot cross the blood-brain barrier
  17. How will lipid soluble compounds cross the blood-brain barrier?
    by means of diffusion
  18. What type of cells synthesize the cerebrospinal fluid?
    ependymal cells
  19. The cerebrospinal fluid, or CSF, is synthesized in the:
    choroid plexus
  20. List the three functions of the CSF discussed in class.
    • mechanical protection
    • homeostatic regulation
    • circulation
  21. List the pathway that CSF will travel through the CNS.
    lateral ventricles - 3rd ventricle - 4th ventricle - subarachnoid space - down the spinal cord - back up to the brain
  22. What two structures are connected by the cerebral aquaduct?
    the 3rd and 4th ventricles
  23. Where does old CSF get recycled?
    in the arachnoid villi
  24. Cerebrospinal fluid is comprised mostly of:
  25. List the four elements/compounds found in the CSF discussed in class.
    • oxygen
    • carbon dioxide
    • glucose
    • ions
  26. Peduncles in the brain function as:
    connection pathways
  27. To what three brain structures do the superior cerebellar peduncles connect the cerebellum to?
    • cerebrum
    • diencephalon
    • midbrain
  28. The middle cerebellar peduncle links the cerebellum to the:
  29. The inferior cerebellar peduncle links the cerebellum with what two brain structures?
    • medulla oblongata
    • spinal cord
  30. The connective pathway that connects the anterior part of the midbrain to the cerebrum is known as the:
    cerebral peduncle