W3-The Cerebral Cortex

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  1. Protuberance on surface of the brain?
  2. a fold or groove seperating one gyrus from another
  3. Fissure = ?
    Big sulcus
  4. Menings 3 layers are?
    1. dura mater = just under skull

    • 2. arachnoid mater =a fine, delicate membrane, the middle one of the three membranes or meninges that surround the brain and spinal cord, situated between
    • the dura mater and the pia mater.
  5. Pia Mater =
    Lining the brain
  6. What is between the Arachnoid mater and Pia Mater?
    the Subarachnoid spaced= filled with CSF
  7. Subdural Hematoma are usually caused by trauma resulting in _____ of viens in the subdural area and bleeding occurs between ___ mater & ____ mater?
    A1. tearing.

    A2. dura

    A3. arachnoid
  8. Subdural Hematomas can be acute or ___?
  9. Acute subdural hematomas "classic-shaken baby syndrom" are associated with?
    high speed acceleration/deceleration injuries

    60-80% mortality rate because the force required to cause them is associated with other severe brain injuries-
  10. CHRONIC Subdural Hematoma occurs over days/weeks often due to minor ______? Most commonly in ____?  Often stops by itself about___ good-complete recovery?
    A1: head trauma

    A2: elderly    A3: 80%
  11. Subdural Hematoma is seen in Elderly and Alcoholics with ____?  as the veins in the _____  region are stretched further.
    A1: Cerebral atrophy

    A2: Subdural
  12. Subdural Hematoma symptoms are?
    increasing headache, confusion, difficulty walking, fluctuating levels of consciousness, irritability, numbness, lethargy, nausea, vomiting
  13. EPIDURAL Hematoma is most associated with ______ e.g, bike accidents. Usually an _____ is ruptured causing rapid of out-flowing of blood.
    Bleeding between the ___ mater & ___ increases intracranial pressure about 20% fatal
    A1: Severe     A2: artery

    A3: Dura      A4: skull
  14. EPIDURAL Hematoma - may have lucid period after drama followed by loss of _____?  Fixed or dilated pupil on side of ____?  weakness on side of _____ injury? Hernation of ____ due to increased cranial pressure.
    A1: consciousness     A2: injury

    A3: opposite   A4: Medulla
  15. EPIDURAL Hematoma - when the Dura is stripped from skull it causes tremendous ___?
    And requires prompt ____ intervention?
    A1: headaches  A2: surgical
  16. (hematomas) =
    • blood clots  caused by head trauma
    • outside the brain but inside the skull.
  17. Epidural hematoma lies outside and ___ the dura mater
    (on top of)
  18. subdural hematoma lies inside (beneath) the dura mater and ___ the arachnoid mater
  19. Epidural hematomas are usually caused by bleeding from an ?
  20. subdural hematomas are usually due to bleeding from  ______ that drain blood away from the surface of the brain.
  21. What are the Main 4 lobes?
    Occipital lobes, parietal lobe, temporal, frontal lobe
  22. Occipital lobe receives info from the eye if damaged from "stroke" can no longer produce visual images in the brain is called ___?
    Cortical blindness- cannot visualize things or have dreams with visual images
  23. Parietal Lobe is located between ___ and ____ lobe?
    A1: sulcus

    A2: occipital
  24. Parietal Lobe has 2 main areas.  Area 1: Primary Somatosensory Cortex (Aka postcentral gyrus)? and Area 2 = ?
    Parietal lobe Posterior to the primary Somatosensory cortex
  25. Primary Somatosensory Cortex (Aka postcentral gyrus) is important for....?
    touch sensations info from muscle stretch to receptors & joints from opposite side of the body
  26. Parietal lobe Posterior to the primary Somatosensory cortex is important for...?
    processing info regarding what is being felt,  spatial awareness - e.g. where is an object- eye-hand movement coordination
  27. Each location in the _____ Cortex gets sensory info from a specific location and each location on the ______ regulates movement to a specific motor area
    A1: Somatosensory

    A2: primary motor cortex
  28. TEMPERAL LOBE is the primary cortical target for auditory info processing  and advanced ____ processing that gives meaning to shapes/color
    A: visual
  29. Wernicke's Area is located in the left___? and is important for ______?
    A: temporal lobe  B: understanding language
  30. Under the Temporal Lobe are areas of the _____ system, amygdula and ____?
    A: limbic  B: hippocampus
  31. Frontal Lobe is the primary ____ (aka precentral gyrus) - specialized for the control of ____ movements
    a: cortex  B: fine
  32. Frontal lobe controls most of the movements on the opposite side aka ___?
  33. Pre-Frontal Cortex- Functions specializes in working memory =? and making decisions and _____?  *if damaged =?
    A: short-term memory e.g., recent events like where you parked your car

    b: recognizes sequences

    ** innapropriate/impulsive behavior
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W3-The Cerebral Cortex
functions of cerebral cortex
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