lab vocab

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Author:
KellyM
ID:
214435
Filename:
lab vocab
Updated:
2013-04-19 00:05:26
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vocab
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vocab
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  1. 2 major cell types
    • neurons
    • supporting cells (glia)
  2. lobe
    subdivision of a bodily organ or part bounded by fissures
  3. sulcus
    any of the narrow fissures separating adjacent convolutions of the brain
  4. gyrus
    (Greek: circle) any of the prominent, rounded, elevated convolutions on the surfaces of the cerebral hemispheres
  5. fissure
    a normal groove or furrow that divides the brain into lobes
  6. funiculus
    one of three major divisions of the white matter in spinal cord
  7. meninges
    • the three membranes that envelop the brain and spinal cord (central nervous system)
    • consist of 3 layers (mater): dura mater, arachnoid mater, pia mater
  8. plexus
    (Latin: braid) structure in the form of a network, especially of nerves, blood vessels, or lymphatics
  9. commissure
    (Latin: to join) tract of nerve fibers passing from one side to the other of the spinal cord or brain
  10. white matter
    whitish nerve tissue of the brain and spinal cord consisting mainly of myelinated nerve fibers
  11. grey matter
    greyish nerve tissue of brain and spinal cord containing nerve cell bodies, dendrites, and bare (unmyelinated) axon
  12. corpura quadrigemina
    quadruplet bodies, made up by the two inferior and two superior colliculi
  13. Pia mater
    • (Latin: soft mother)
    • delicate membrane
    • firmly adheres to surface of brain and spinal cord following the contours of the brain

    Function: impermeable to liquid; pieced by blood vessels that travel into the nervous tissue
  14. dura mater
    • (Latin: tough mother)
    • thick durable membrane
    • closest to skull
    • dense fibrous tissue

    Function: forms a sac enveloping the arachnoid mater; supports blood venous away from blood flow
  15. arachnoid mater
    • (Latin: spider mother)
    • middle membrane, thin and transparent
    • spider-like appearance

    Function: cushions the central nervous system; loosely fitting sac

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