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Central Nervous System

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  2. Ventral view of the brain
    383
  3. Internal Structure of Cerebrum
    395
  4. Brain--midsagittaly
    390
  5. Central Nervous System
    Brain and spinal cord
  6. Secondary Brain Vesicles
    379
  7. Telencephalon
    One of the five secondary brain vesicles. Telencephalon="endbrain"

    379
  8. Diencephalon
    • One of the five secondary brain vesicles.
    • Diencephalon="interbrain"
    • -surrounded by the cerebrum
    • -composed of:
    •     -thalamus- gateway to the cerebral cortex
    •     -hypothalamus- main visceral control center
    •     -epithalamus- contains the pineal gland which secretes melatonin

    379 and worksheet
  9. Mesencephalon
    • One of the primary brain vesicles.  Remains undivided.
    • Mesencephalon= midbrain

    379
  10. Metencephalon
    • One of the five secondary.
    • Metencephalon= "afterbrain"

    379
  11. Myelencephalon
    • One of the five secondary brain vesicles.  
    •    -brain most like the spinal cord
    •    -develops into two major bends
    •          -midbrain flexure
    •          -cervical flexure

    379
  12. Cerebral Cortex
    • -gray matter of brain
    • -2 to 4 centimeters thick
    • -gives consciousness
    • -enables voluntary action
    • -bilateral
    • -divided into the sensory (precentral gyrus) and motor (postcentral gyrus) areas

    worksheet
  13. 3 areas of the brain
    • Motor: cortical areas that control motor functions
    • Sensory: cortical areas involved with conscious sensation

    worksheet
  14. Lateralization of Cortical Functioning
    division of labor or specialization for different cognitive functions

    Examples:

    • Left Hemisphere
    •      -language
    •      -math
    •      -logic
    • Right Hemisphere
    •      -visual-spatial skills
    •      -emotion
    •      -art
    •      -music

    worksheet
  15. Cerebral White Matter
    • -deep to the gray matter of the cortex
    • -provides communication for gray matter
    • -association fibers connect different parts of the same hemisphere
    • -projection fibers ascend or descend to or from (respectively) the cerebral cortex
    • -commissures are nerve fibers that run between the two hemispheres

    worksheet
  16. Hypothalamus
    • -autonomic control center
    • -center of emotional response
    • -body temperature regulation
    • -hunger and thirst sensations
    • -control of motivational behavior
    • -regulation of sleep-wake cycles
    • -control of endocrine system
    • -formation of memory

    worksheet
  17. What are the functional disorders resulting from  injury to the hypothalamus?
    • -can result in severe weight loss or obesity
    • -sleep disturbances
    • -dehydration
    • -emotional disorders

    392 at the bottom
  18. Cerebellum (small part to the brain)
    • -process inputs from the 
    •     -cerebral motor cortex
    •     -brain stem nuclei
    •     -sensory receptors
    • -provides timing and patterns of skeletal contraction

    worksheet
  19. Cerebral Spinal Fluid
    • -gives buoyancy (reduces the weight of the brain by 97 percent)
    • -cushions
    • -nourishes (hormones, vitamins, ions)
    • -about 1 liter per day is produced
    • -most is made in the choroid plexuses

    worksheet
  20. What would happen if flow and drainage of the cerebral spinal fluid in the subarachanoid space and ventricles were blocked?
    look in book
  21. Blood-Brain Barrier
    • -maintains stable environment in the brain
    • -blood-borne substances separated from the         brain by endothelial capillary walls with abundant tight junctions
    • -permeable to fat-soluble molecules

    worksheet
  22. Meninges
    408
  23. Alzheimer's Disease
    405, 418-419
Author
alb229
ID
227183
Card Set
Central Nervous System
Description
BYU Anatomy - Central Nervous System - Chapter 13
Updated

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