Biomed Mod.12 obj. 13

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jnikrap
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194515
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Biomed Mod.12 obj. 13
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2013-01-22 19:57:35
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Biomed mod 12 obj 13
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Biomed mod.12 obj.13
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  1. What are the four external lobes of the brain?
    • Frontal
    • parietal
    • temporal
    • occipital
  2. What is considered by some authors to be a fifth external lobe of the brain?
    the insula
  3. Insula
    • The part of the brain that is folded inside
    • it is only visible when we cut the lateral surface of the brain away
  4. Sulci (singular sulcus)
    • Latin: "Furrows, groove, ditch, trench"
    • Fissures or grooves in the surface of the cortex
  5. Deep grooves are called _______.
    fissures 
  6. Gyri (singular gyrus)
    bumps on the surface of the cortex
  7. ________ and ________ form the borders between the lobes.
    Sulci, fissures
  8. The ______ lobe and _______ lobe are separated by the central sulcus.
    frontal, parietal
  9. On either side of the central sulcus are two parallel, almost identical-looking gyri. They are called the ...
    • precentral gyrus (rostrally part of the frontal lobe)
    •    -involved in the motor systm

    • postcentral gyrus (caudally, part of the parietal lobe
    •    -involved in sensations from the face and body surfaces (the somatosensory system)
  10. the frontal and parietal lobes are separated from the temporal lobe by the _____ _____, also called the Lateral sulcus or the Sylvian fissure.
    lateral fissure
  11. parieto-occipital sulcus
    • Separates the parietal and occipital lobes
    • only visible on the midsagittal surface
    • not evident on the lateral surface of the brain
  12. Medial longitudinal fissure
    separates the brain into two hemispheres
  13. Transverse fissure
    separates the cerebrum form the cerebellum
  14. What German scientist in the late 1800s early 1900s , started slicing a brain and looking at the sections through a microscope?
    Korbinian Brodmann
  15. Brodmann's Areas:
    Parietal Lobe Areas 3, 1, and 2 (postcentral gyrus):
    • Primary somatosensory cortex
    • receiving information about the face and body surface.
    • no one knows why we list them in this order
    • Taste is also here, and nearby in area 43

    NEED TO KNOW
  16. Brodmann's Areas:
    Frontal Lobe, Area 4 (precentral gyrus):
    • primary motor cortex
    • sending axons to the alpha motor neurons of the spinal cord (executing movement)
    • NEED TO KNOW
  17. Brodmann's Areas:
    Frontal Lobe, Area 44 and 45: Broca's area
    • In most people, located on the left side 
    • responsible for the production of speech (movement of the throat and tongue).

    NEED TO KNOW
  18. Brodmann's Areas:
    Occipital Lobe, Area's 17, 18, and 19.
    • Visual cortex (sensory, sight)
    • Area 17 is also called primary visual cortex or striate cortex.
    • NEED TO KNOW
  19. Brodmann's Areas:
    Parietal Lobe, Area 43
    Taste is found here, near primary somatosensory cortex

    GOOD TO KNOW
  20. Brodmann's Areas:
    Frontal Lobe, Area 6 supplementary motor area
    planing or imagining movement

    GOOD TO KNOW
  21. Brodmann's Areas:
    Frontal Lobe, Area 8 Frontal eyelids 
    Eye movement

    GOOD TO KNOW
  22. Brodmann's Areas
    Temporal Lobe Area 41 and 42: Primary auditory cortex
    sensory, hearing

    GOOD TO KNOW
  23. Brodmann's Areas
    Temporal Lobe Area 22p (posterior part of 22) Wernicke's area
    Responsible for the understanding of speech and sounds.

    GOOD TO KNOW

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