IBHS LAB 7

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Author:
lintyone
ID:
179799
Filename:
IBHS LAB 7
Updated:
2012-10-25 00:44:36
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medterms CH13
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IBHS LAB 7: Medterms Ch13
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  1. What are the functions of the nervous system?
    • keeps us in touch with both internal/external env
    • serves as control center & communication network
    • stores & processes info
    • stimulates mvmt
    • detects change
  2. When working with the endocrine system, what does the nervous system do?
    Helps maintain homeostasis
  3. The study of behavior & the fn & process of the mind is?
    Psychology
  4. What do sensory or afferent receptors do?
    detect changes that occur inside & outside the body & convey them to brain
  5. home/o
    sameness
  6. -stasis
    controlling
  7. physi/o
    nature
  8. aut/o
    self
  9. How does the nervous system respond to afferent receptors?
    send motor/efferent signals from brain to muscles/glands to cause effect
  10. somatic nervous system
    • part of nervous system
    • conscious/voluntary control
  11. autonomic nervous system
    • part of nervous system
    • relates to involuntary/automatic body fns
  12. somatic
    pertains to the body
  13. 2 main divisions of nervous system
    • central nervous system (CNS)
    • peripheral nervous system (PNS)
  14. Central nervous system
    • Brain
    • Spinal cord
  15. Peripheral nervous system
    various nerve processes that connect brain and spinal cord w/receptors, muscles & glands

    • sensory (afferent)
    • motor (efferent)
  16. CNS: Brain
    • receives & integrates data
    • regulates body activities
  17. CNS: Spinal cord
    • carries info to and from brain
    • provides reflexes
  18. PNS: sensory/afferent
    conveys info from receptors to CNS
  19. PNS: motor/efferent
    conveys info from CNS to muscles & glands
  20. peripheral
    away from the center
  21. nervous system composed of 2 types of cells
    • neurons
    • glial (neuroglial)
  22. Fns of neurons
    conduct impulses to or from nervous system
  23. cytoplasmic projections of neuron
    • single axon
    • several dendrites project from cell body
  24. Dendrite fn
    transmit impulses to cell body
  25. axon fn
    carries impulses away from cell body
  26. myelin sheath
    • white fatty covering surrounding many axons
    • conducts nerve impulses faster than non-myelinated axons
  27. neurilemma (neurolemma)
    outermost layer of axon
  28. neuroglia or glia fn
    • support tissue cells of nervous system
    • provide support & protection
    • can replace themselves
  29. neur/o
    nerve
  30. muscul/o
    muscle
  31. myel/o
    spinal cord
  32. structure of typical neuron
    • cell body
    • single axon
    • several dendrites
  33. node of ranvier
    un-myelinated parts of myelinated axons
  34. aut/o
    self
  35. cerebell/o
    cerebellum
  36. cerebr/o, encephal/o
    brain
  37. cervic/o
    neck
  38. coccyg/o
    coccyx (tailbone)
  39. crani/o
    cranium (skull)
  40. dendr/o
    tree
  41. dur/o
    dura mater
  42. gli/o
    neuroglia or a sticky substance
  43. kerat/o
    cornea; hard or horny
  44. lumb/o
    lower back
  45. mening/o
    meninges
  46. ment/o, psych/o
    mind
  47. myel/o
    bone marrow or spinal cord
  48. nerv/o, neur/o
    nerve
  49. phren/o
    mind or diaphragm
  50. physi/o
    nature
  51. retin/o
    retina
  52. sacr/o
    sacrum
  53. spin/o
    spine
  54. thorac/o
    thorax (chest)
  55. vascul/o
    vessel
  56. agora-
    open marketplace
  57. -asthenia
    weakness
  58. -esthesia
    sensation, perception
  59. -lexia
    words, phrases
  60. -orexia
    appetite

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