SLCC ANATOMY CHAPTER 16

Home > Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards.


  1. Image Upload
    Which body
    regions are innervated by the lumbar enlargement of the spinal cord?
    lower limbs
  2. Image Upload
    What is the
    collective name for all of the axons that project inferiorly from the spinal
    cord?
    cauda equina
  3. Image Upload
    Within the
    cauda equina is a thin strand of pia mater called the
    filum terminale
  4. Image Upload
    Cell bodies of
    sensory neurons are housed in each
    posterior root ganglion
  5. Image Upload
    Which structure
    contains motor axons only?
    anterior root
  6. Image Upload
    Within each
    intervertebral foramen, an anterior root and its corresponding posterior root
    unite to form a
    spinal nerve
  7. Image Upload
    The spinal cord
    meninges, in order from the outermost to the innermost, are the
    • Image Upload
    • The spinal cord
    • meninges, in order from the outermost to the innermost, are the
  8. Image Upload
    The tough,
    protective ____________ extends between adjacent vertebrae to fuse with the
    connective tissue surrounding the spinal nerves.
    dura mater
  9. Image Upload
    Between the
    dura mater and the inner walls of the vertebrae is the
    arachnoid
  10. Image Upload
    The substance
    that fills the subarachnoid space is
    cerebrospinal fluid
  11. Image Upload
    What are the
    paired, triangular extensions of the pia mater that help anchor the spinal cord
    laterally to the dura mater?
    denticulate ligaments
  12. Image Upload
    The outer
    region of the spinal cord, composed primarily of myelinated axons, is called the
    white matter
  13. Image Upload
    The word root
    commissura most nearly means
    a seam
  14. Image Upload
    The lateral
    horns found in the T1-L2 regions of the spinal cord contain
    cell bodies of autonomic motor neurons
  15. Image Upload
    Which spinal
    cord components contain cell bodies of interneurons and axons of sensory
    neurons?
    posterior horns
  16. Image Upload
    White matter of
    the spinal cord is partitioned into ____________, each containing both ascending
    and descending ____________.
    funiculi; tracts
  17. Image Upload
    The anterior
    funiculi are interconnected by the
    white commissure
  18. Image Upload
    The spinal
    nerves inferior to ____________ exit below the vertebra of the same
    number.
    C8
  19. Image Upload
    Which term
    describes the specific region of skin monitored by a single spinal nerve?
    dermatome
  20. Image Upload
    The anterior
    rami of spinal nerves T1-T11
    are called intercostal nerves
  21. Image Upload
    The four
    principal nerve plexuses are the
    cervical, brachial, lumbar, and sacral
  22. Image Upload
    Branches of
    which plexuses innervate anterior neck muscles, the skin of the neck, and parts
    of the head and shoulders?
    cervical
  23. Image Upload
    Nerves from the
    brachial plexuses innervate the
    pectoral girdles and upper limbs
  24. Image Upload
    All of the
    following branch from the lumbar plexus except the
    sciatic nerve
  25. Image Upload
    Which nerve
    innervates the posterior thigh and leg muscles, plantar foot muscles, and skin
    of the sole of the foot?
    tibial
  26. Image Upload
    Which adjective
    best describes reflex responses?
    automatic
  27. Image Upload
    The first step
    involved in a typical neural reflex is
    activation of a receptor by a stimulus
  28. Image Upload
    Which of the
    following is not generally involved in a reflex?
    inhibition of an effector by a stimulus from a motor neuron
  29. Image Upload
    If its receptor
    and effector are on the same side of the body, a reflex arc is termed
    ____________; if on opposite sides, it is ____________
    ipsilateral; contralateral
  30. Image Upload
    A familiar type
    of monosynaptic reflex that monitors and regulates the length of skeletal muscle
    is the
    stretch reflex
  31. Image Upload
    Where does the
    adult spinal cord end?
    • immediately above the filum terminale
    • at the tip of the conus medullaris
    • usually at the level of vertebra L1
    • all of the above
  32. Image Upload
    Although
    extending from the end of the spinal cord, the ____________ contains no neural
    fibers, only fibrous connective tissue.
    filum terminale
  33. Image Upload
    The posterior
    and anterior roots of the ____________ must elongate because the spinal cord
    stops growing before the vertebral column does.
    cauda equina
  34. Image Upload
    Fibers of the
    ____________ intertwine on one side with those of another meninx, and on the
    other, with glial cells.
    pia mater
  35. Image Upload
    Which spinal
    meningeal layer is sandwiched between a potential space and a very significant
    space occupied by connective tissue fibers and cerebrospinal fluid?
    arachnoid
  36. Image Upload
    Helping to
    prevent side-to-side and inferior movement of the spinal cord are paired
    ____________ that connect the pia mater to the dura mater.
    denticulate ligaments
  37. Image Upload
    The sensory
    nuclei of the spinal cord contain which type of neuron cell bodies?
    association
  38. Image Upload
    In the spinal
    cord, a ____________ is to a tract as a horn is to a
    nucleus.
    funiculus
  39. Image Upload
    Which
    structures would not be found in the anterior horns of the spinal cord?
    cell bodies of autonomic motor neurons
  40. Image Upload
    The
    roots of the brachial plexus are actually
    the anterior rami of spinal nerves
  41. Image Upload
    Which branches
    of spinal nerves innervate the limbs and the anterolateral portions of the
    trunk?
    anterior rami
  42. Image Upload
    Of the
    following, which nerve ranges farthest from its roots in the cervical plexus and
    is most vital to your health?
    phrenic
  43. Image Upload
    In a freak
    golfing accident, Jim damaged a nerve in his arm and now has trouble extending
    his forearm, wrist, and fingers. Which nerve did he damage?
    radial
  44. Image Upload
    "Crutch palsy"
    and "drunkard's paralysis" both refer to conditions resulting from injury to the
    ____________ of the brachial plexus.
    posterior cord
  45. Image Upload
    Which nerve is
    most likely to be injured by fractures or dislocations of the elbow (or by an
    extra hard hit to the "funny bone")?
    ulnar
  46. Image Upload
    Damage to which
    nerve would likely cause the most severe dysfunction in both the urinary and
    reproductive systems?
    pudendal
  47. Image Upload
    Bob had polio
    as a child and now drags his right leg slightly when he walks because of
    weakness in flexing his hip and extending his knee. In addition, his leg swings
    outward slightly with each step, and he has difficulty in crossing his right leg
    over his left. These all result from damage to which nerve?
    femoral
  48. Image Upload
    Which branches
    of the lumbar plexus innervate muscles of the anterior abdominal wall?
    iliohypogastric and ilioinguinal nerves
  49. Image Upload
    Loss of
    sensation in a single dermatome on one side of the body could indicate damage to
    a spinal nerve or to
    a posterior root ganglion
  50. Image Upload
    Which terminal
    branch of the brachial plexus innervates the skin just distolateral to the
    acromion, as well as an abductor and a lateral rotator of the arm?
    axillary nerve
  51. Image Upload
    If a reflex arc
    involves a single interneuron, it is classified as
    polysynaptic
  52. Image Upload
    Clinically, a
    ____________ reflex accompanied by ____________ strongly indicates brain or
    spinal cord injury.
    hyperactive; clonus
  53. Image Upload
    In males, what
    reflex protects a testis from damage by elevating it when the medial side of the
    thigh is briskly stroked?
    cremasteric
  54. Image Upload
    Normal for
    infants but indicative of CNS damage in adults, the ____________ is essentially
    a reversal of the ____________ reflex.
    Babinski sign; plantar
  55. Image Upload
    The tapered
    inferior end of the spinal cord is called the
    conus medullaris.
  56. Image Upload
    The anterior
    root of a spinal nerve contains
    axons of motor neurons only.
  57. Image Upload
    Identify the
    meningeal layer immediately deep to the subdural space.
    arachnoid
  58. Image Upload
    Axons cross
    from one side of the spinal cord to the other through a gray matter region
    called the
    gray commissure.
  59. Image Upload
    The radial
    nerve originates from the ________ plexus.
    brachial
  60. Image Upload
    Which structure
    provides motor innervation to the deep back muscles and receives sensory
    information from the skin of the back?
    posterior ramus
  61. Image Upload
    Lower limbs are
    supplied by neurons from the______ of the spinal cord.
    lumbar enlargement
  62. Image Upload
    The
    subarachnoid space contains ________, and the epidural space contains ________.
    CSF; fat, connective tissue, and blood vessels
  63. Image Upload
    The white
    matter of the spinal cord is composed primarily of
    myelinated axons.
  64. Image Upload
    Which statement
    is true about intercostal nerves?
    They originate from the thoracic region of the spinal cord.

Card Set Information

Author:
Anonymous
ID:
82910
Filename:
SLCC ANATOMY CHAPTER 16
Updated:
2011-05-01 03:49:46
Tags:
SLCC ANATOMY
Folders:

Description:
Spinal Cord and Spinal Nerves
Show Answers:

Home > Flashcards > Print Preview