A&P 1 exam 4 (part 1)

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A&P 1 exam 4 (part 1)
2014-11-18 14:44:44
anatomy physiology final fall 2014

Nervous System: Peripheral Nervous System Fall 2014
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  1. spinal nerves number?
    31 pairs of spinal nerves
  2. spinal nerves are named after?
    vertebrae they are associated with
  3. cervical?
  4. thoracic?
  5. lumbar?
  6. sacral?
  7. name cervical spine nerve after?
    the one below it
  8. exception to spinal nerve naming?
    C8, named below C7
  9. fomartion of spinal nerves is based on 2 things?
    • roots
    • rami
  10. has sensory function and is made of sensory neurons
    dorsal root of spinal nerve
  11. has motor information and is made of motor neurons
    ventral root of spinal nerves
  12. inervates skin and muscles of back
    dorsal ramus of spinal nerves
  13. innervates skin and muscles of side, back and limbs
    ventral ramus of spinal nerves
  14. spinal nerve is only long enough to exit vertebral column, then splits into 2 and is known as
  15. what is separated by body region
  16. expanded region in spinal nerves where all cell bodies are found
    ganglion dorsal root
  17. both sensory and motor neurons
    dorsal and ventral
  18. all motor info comes out of ?
    ventral side of CNS
  19. ventral roots from adjacent spinal nerves cause
  20. loose, network of adjacent spinal nerves
  21. innervates muscle and skin of head, neck and thorax
    cervical plexus (C1-C4)
  22. inervates the arms
    branchial plexus (C5-C8 and T1)
  23. inervates the legs and lower part of trunk
    lumbosacral plexus (L1-L5, S1-S4)
  24. visceralĀ _____ neurons enter into spinal chord via dorsal root
  25. sensory visceral pathways is a single or multi pathway?
    single neuron pathway
  26. same as somatic sensory pathways
    sensory visceral
  27. includes 2 neuron pathways and neurons have cell bodies gathered up in to ganglia
    motor visceral
  28. carries out of CNS and make it almost where synapses with postganglionic
    preganglionic neuron
  29. goes to final destination and is the shorter neuron
    postganglionic neuron
  30. longer neuron is pre or post ganglionic?
    preganglionic is longer
  31. PNS is broken up into?
    sensory and motor
  32. Sensory and MotorĀ PNS is broken up into?
    general and special
  33. General sensory and general motor PNS are broken up into?
    somatic and visceral
  34. special sensory and special motor PNS is broken up into?
    somatic and visceral
  35. occurs over large areas of body
  36. occurs are specific location in body, very restrictive
  37. most things in PNS are?
  38. experienced over wide areas of the body
    general sensory
  39. sensations felt by muscles and skin, proprioreceptions
    general somatic sensory
  40. ex of general somatic sensory?
    touch, temperature change, pressures, muscle contractions, joint movement, tension in tendons
  41. gut and internal organs
    general visceral sensory
  42. ex of general visceral sensory
    stretch, temperature
  43. specific location
    special sensory
  44. sensations associated with the head
    somatic special sensory
  45. ex of somatic special sensory
    vision, hearing, balance
  46. localized and associated with gut in head, in mouth/throat
    visceral special sensory
  47. ex of visceral special sensory
    taste (only one)
  48. smell can be
    somatic sensory or visceral sensory
  49. found over wide areas of body
    general motor
  50. output to skeletal muscle and main output to CNS
    general somatic motor
  51. output to smooth muscle and glands
    visceral general motor
  52. no motor output at all
    somatic special motor
  53. motor output to muscle, branchial muscles
    special visceral motor
  54. branchial muscles aka
    skeletal muscles
  55. nervous system considers any derivative from splanchnic to be
  56. associated with special sensations, receptors are combo of epithelial cells and sensory neurons
    special sensory receptors
  57. no epithelial cells, sensory neurons detect changes
    general sensory receptors
  58. tied to the type of information they collect
    distribution of receptors
  59. gather info from external environment
  60. ex of exteroreceptors
    epidermis and dermis
  61. where are exteroreceptors located
    near surface of body
  62. gather internal info
  63. where are enteroreceptors located?
    away from surface of body, in epithelium and tissue with internal organs and muscles
  64. ex of enteroreceptors
  65. types of receptors?
    • free nerve endings
    • encapsulated nerve endings
  66. type of receptor with no specialization
    free nerve endings
  67. type of nerve ending with connective tissue wrapped around it
    encapsulated nerve endings
  68. encapsulated nerve endings make receptors more
  69. 3 types of encapsulated nerve endings
    • meisseners corpulscles
    • pacinian corpulscles
    • muscle spindles
  70. located in dermis and gives discrimination of fine touch
    meisseners corpulscles
  71. where are meisseners corpuscles found
    in finger tips
  72. located in hypodermis and in tendons and ligaments
    pacinian corpuscles
  73. what does pacinian corpuscles detect?
    deeper pressures
  74. where are muscle spindles found?
    in skeletal muscles
  75. detect stretch or contraction
    muscle spindles
  76. tied to propiolreception
    muscle spindles
  77. specialized synapse where depression is
    motor end plate
  78. neurotransmitter can be released into this space in somatic motor
    motor end plate
  79. where is motor end plate found?
    somatic motor
  80. branches of motor neuron terminated near muscle fibers
    visceral motor
  81. visceral motors have no
  82. what is unique to skeletal muscle
    visceral motor