Brachial Plexus

47 Questions | Total Attempts: 6157

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Brachial Plexus

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Questions and Answers
  • 1. 
    Spinal cord: has ___areas of enlargement "bulges". One is in the _____ area, one in the__________
    • A. 

      4, cervical area, neck area,lower lumbar, lower back area

    • B. 

      3, cervical area, lumbar area, thoracic

    • C. 

      2, cervical area, lumbar area

  • 2. 
    Cervical: means
    • A. 

      Neck

    • B. 

      Relating to the cervix

    • C. 

      Lower back

    • D. 

      Trunk

  • 3. 
    Lumbar means:
    • A. 

      Relating to "wood" meaning the trunk of the body

    • B. 

      The curve in the back of the spine

    • C. 

      Lower back

    • D. 

      A seating position

  • 4. 
    The 2 areas of enlargement (“bulges”) are called:
    • A. 

      Bony prominances

    • B. 

      Brachial plexus and lumbar plexus

    • C. 

      Cervical plexus and lower back plexus

  • 5. 
    The brachial plexus is located in the ________
    • A. 

      Lumbar area

    • B. 

      Cervical area

    • C. 

      The arms

    • D. 

      The legs

  • 6. 
    Plexus means:
    • A. 

      A bundle of something in this case a bundle of arteries

    • B. 

      A bundle of something, in this case, a bundle of nerve fibers)

    • C. 

      A bundle of something, in this case a bundle of neurons

    • D. 

      A bundle of something, in this case a bundle of muscle fibers

  • 7. 
    The function of the brachial plexus is to
    • A. 

      Supply movement to the upper extremities

    • B. 

      Supply blood to the upper extremities

    • C. 

      Supply innervation to the upper extremities.

    • D. 

      Supply innervation to the lower extremities

  • 8. 
    The origin of the PNS (peripheral nervous system) is located where?
    • A. 

      Brachial plexus

    • B. 

      Lumbar plexus

  • 9. 
    Do you know what “innervation means?
    • A. 

      I do indeed, innervation means to to "supply with blood"

    • B. 

      I do indeed, innervation means to to "supply with muscle"

    • C. 

      I do indeed, innervation means to to "supply with nerves"

  • 10. 
    Breakdown of Brachial Plexus:
    • A. 

      Roots, trunks, divisions and cords

    • B. 

      C1-7, L1-12, L1-L5

    • C. 

      Medial, lateral, distal, proximal

  • 11. 
    These roots, trunks, divisions, cords ultimately break down into 5 major nerves in the upper extremity: what are they. (pick 3)
    • A. 

      Axillary,median

    • B. 

      Musculoctaneous

    • C. 

      Ulnar, radial

    • D. 

      Axlliary, femur

    • E. 

      Obturator nerve

  • 12. 
    The ROOT exit off at:
    • A. 

      The spinal cord at C-1 though T-1 (C1,2,3,4,5,6,7,8 and T-1)

    • B. 

      The spinal cord at c-5 through t-1 (C5,6,7,8 and T-1)

    • C. 

      The spinal cord at C-5 through C7 (c5,6,7)

  • 13. 
    The root gives rise to _ nerves the _________and ________
    • A. 

      2, axillary, and musculocutaneous

    • B. 

      2, dorsal scapular, Long thoracic

    • C. 

      3, ulnar, radial, and median

    • D. 

      3 axillary, radial and median

  • 14. 
    1. dorsal scapular nerve is susceptible to ________ injury.
    • A. 

      Contrature

    • B. 

      Stretch

    • C. 

      Scapular injury

  • 15. 
    The long thoracic nerve innervates the _________, which keep the _____ flat on the back
    • A. 

      Pectoral, scapula

    • B. 

      Biceps, clavical

    • C. 

      rhomboids, scapula

    • D. 

      Rhomboids, spinal cord

  • 16. 
    Trunks are:
    • A. 

      Where the roots come together to combine, forming upper, middle and lower trapezium, at the rhomboid muscles)

    • B. 

      Where roots come together to combine, forming upper, middle, and lower trunks (at the level of the scalene muscles)

    • C. 

      Where roots come together to combine, forming upper, middle, and lower trunks (at the level of the rotary cuff muscles)

    • D. 

      Where the roots come together to combine, forming upper, middle and lower trapezium, at the scalene muscles)

  • 17. 
    2. Middle trunk: injury here
    • A. 

      Results in radial nerve distribution problems

    • B. 

      Erb’s palsy (a.k.a. obstetrical palsy)

    • C. 

      Klumpke’s palsy

  • 18. 
    Lower trunk injury results in:
    • A. 

      Result in Erb’s palsy (a.k.a.

    • B. 

      Results in radial nerve distribution problems

    • C. 

      Klumpke’s palsy

  • 19. 
    Divisions: each trunk divides into
    • A. 

      Anterior and posterior postions (located deep in the middle 1/3 of clavical

    • B. 

      Proximal and distal positions (located deep in the middle 1/3 of the scapula)

    • C. 

      Medial and lateral positions (located deep in the middle 1/3 of the clavical)

    • D. 

      Hemilateral and ipslateral positions (located in the middle 1/3 of the clavical)

  • 20. 
    True or false: In anatomical positioning: The anterior division: nerve fibers eventually innervate doral aspect of UE
    • A. 

      True

    • B. 

      False

  • 21. 
    True or false: In anatomical postioning,the Posterior division: nerve fibers eventually innervate dorsal aspect of UE
    • A. 

      True

    • B. 

      False

  • 22. 
    Cords: divisions unite to form
    • A. 

      Lateral, posterior, and medial cords (located below the clavicle, in the axillary area)

    • B. 

      Distal, anterior and proximal cords (located below the clavical, in the axillary area

    • C. 

      Lateral, posterior, and medial cords (located below the biceps, in the axillary area)

    • D. 

      Distal, anterior and proximal cords,(located below the biceps in the axillary area)

  • 23. 
    Cords give rise to the major nerve branches pick them out
    • A. 

      Axillary, Musculocutaneous

    • B. 

      Radial, ulnar

    • C. 

      Median, thoracic

    • D. 

      Median

    • E. 

      Axillary,femur

  • 24. 
    The following Describe what type of injury? Usually ARO traction (overstretch along with resistance), for example from an MVA or with a shoulder dislocation Other causes of injury: bleeding, edema, clavicle fractures Traction injury results in an avulsion (a pulling away of the head from the neck and shoulder) Supraclavicular injury (at the root level) versus intraclavicular injury (at clavicle or below) Whole plexus injury is most devastating (flail, anesthetic limb): no motor or sensory function
    • A. 

      Peripheral nerve injuries

    • B. 

      Brachial plexus injury

    • C. 

      Lumbar plexus unjury

    • D. 

      A tendon crush injury

  • 25. 
    Scapular winging:
    • A. 

      Indicates injury at the division level

    • B. 

      Indicates injury at root level

    • C. 

      Indicates injury at cord level

    • D. 

      Indicates injury at trunk level

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