Human Anatomy Ch.14 The Brain

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tbby5065
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54366
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Human Anatomy Ch.14 The Brain
Updated:
2010-12-08 15:47:12
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Human Anatomy Brain
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The Brain
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  1. The brain weighs _____, has 100 _____ neurons & 10 ______ _______.
    • 3 lbs (1.3kg)
    • billion
    • trillion neuroglia
  2. Rich blood supply to the brain:
    ___ of ____ mass but uses ___ of ____ & ____
    • 2%, body
    • 20%, O2 & Glucose
  3. Blood brain barrier (BBB) is permeable to: O2, ___, ____ ___, & Alchol.
    _____ ______: glucose
    • CO2
    • Small lipids
    • active transport
  4. What CAN NOT pass through the blood brain barrier?
    protiens & antibiotics
  5. The Brain Maninges are:
    1.
    2.
    3.
    • Dura matter
    • arachnoid mater
    • pia mater
  6. What is cerebrospinal fluid?
    clear colorless liquid w/____, ____ but ____ _____
    clear colorless liquid w/ ions & protiens but lacks cells.
  7. Where is cerebrospinal fluid?
    1.
    2.
    3.
    • 1. Subarachnoid space
    • 2. Central Canal of Spinal Cord
    • 3. Four Ventricles in brain
  8. How is cerebrospinal fluid formed?
    It's ____ at ____ ____ by ____ cells called _______ cells.
    It's secreted at choroid plexus by glia cells called ependymal cells.
  9. How does cerebrospinal fluid leave the Nervous system?
    Arachnoid villus
  10. How is cerebrospinal fluid moved?
    1.
    2.
    • 1. secretion pressure
    • 2. cilia on ependymal cells
  11. What is cerebrospinal fluids function?
    1.
    2.
    3.
    • 1. protection
    • 2. chem enviornment (waste removal)
    • 3. Cirulation (provide nutrients)
  12. _____ is having water one the brain which causes ____.
    • hydrocephalus
    • pressure
  13. ____ is the connection beetween cerebellum & cerebrum.
    Pons
  14. Function of pons:
    Nuclei which control breathing
  15. Function of the Cerebellum:
    Fine tunes mucle movements.
  16. Parts of the brain (6)
    • 1. Medula Oblogota
    • 2.Pons
    • 3. Midbrain
    • 4. Cerebrum
    • 5.Cerebellum
    • 6. Diencephalon
  17. What does the Diencephanlon include (3)?
    • Thamalus
    • hypothalamus
    • epithalamus
  18. What does the hypothalamus do?
    (5)
    regulate/producce sex drive, emotional behavior, eating, drinking, body temp
  19. The ___ is a major relay station between ____ and rest of CNS.
    • Thalamus
    • cerebrum
  20. What does the thalamus control?
    emotions, memory, learning (limbic system)
  21. The pituitary glad is associated with?
    Hypothalamus
  22. What glad produces hormones?
    Pienal gland
  23. Gyri: ____
    ridges
  24. Sulci: ____
    grooves
  25. Cerebral Cortex= ____
    outter layer of cerebrum
  26. Why is the cerebrum folded?
    Maximizes surface area which means it maximizes number of neurons.
  27. WHat part of a neuron is in the cortex?
    cell body
  28. Hunnington's disease involves ?
    basal ganglia
  29. general brain deterioration is known as?
    Alzheimers disease
  30. WHich colliculi serves as reflex centres for visual activities?
    Superior
  31. The inferior colliculi deal with the ___ ___ and relay impulses from?
    • auditory pathway
    • the inner ear to the brain
  32. _____ are tracts of white matter that resemble branches of a tree.
    Arbor vitae
  33. Folia consists of ____ in a series of __________.
    • gray matter
    • slender parallel folds

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