Nervous/Endocrine

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Anonymous
ID:
12988
Filename:
Nervous/Endocrine
Updated:
2010-04-03 20:45:36
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Nervous Endocrine system
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  1. Uses sensory receptors to monitor changes occurring both inside and outside the body
    Sensory Input
  2. Processes and interprets the sensory input and makes decisions about what should be done at each moment
    Integration
  3. Dictates the responses by activating the effector organs (Muscles and glands
    Motor output
  4. Brain and Spinal Cord
    CNS
  5. Cranial Nerves– efferent and afferent, to and from the brain
    PNS
  6. Spinal Nerves– efferent and afferent, to and from spinal cord
    PNS
  7. Responses based on past experience, reflexes, and current conditions
    CNS
  8. Intelligence, memory, learning, and emotion
    CNS
  9. Integrating, processing, and coordinating
    CNS
  10. The afferent division of the PNS brings _______ information to the CNS
    Sensory
  11. The efferent division carries _____ commands to muscles and glands.
    motor
  12. Two divisions of the efferent division:
    • 1) SNS
    • 2) ANS
  13. SNS
    • Somatic nervous system:
    • Controls skeletal muscle contractions
    • May be voluntary or involuntary
  14. ANS
    Autonomic nervous system:

    • Is also called visceral motor system.
    • Regulates smooth muscle, cardiac muscle, and glands.
    • Is involuntary.
  15. Provides the vital link between sensory inputs and motor responses in the real world
    PNS
  16. The efferent division begins inside the (a) and ends at an (b)
    • a. CNS
    • b. effector
  17. - Controls skeletal muscle contractions.
    - May be voluntary or involuntary.
    SNS
  18. -Is also called visceral motor system.
    -Regulates smooth muscle, cardiac muscle, and glands.
    -Is involuntary.
    ANS
  19. Basic structural unit of nervous system.
    Neuron
  20. 3 characteristics of a neuron:
    • -Extreme longevity
    • -No Mitosis
    • -High metabolic rate (O2 and glucose)
  21. Resist tension forces
    Neurofibrils
  22. Clusters of cell bodies in the PNS
    Ganglia
  23. Renew the cell membrane- protein part of the cytoplasm
    Nissl bodies
  24. Numerous, receptive, sites from other neurons. Conduct electrical signals toward the cell body
    Dendrites
  25. Lower extremity axons extend from the lumbar region into the foot
    radiculopathy
  26. Impulse generators and conductors that transmit nerve impulses away from the cell body
    Axons
  27. Axon collaterals: Extend from the axon at ____ angles
    right
  28. End branches of the axon.
    Telodendria
  29. Bulbs that contact other neurons to form specialized cell junctions called synapses
    Axon Terminals
  30. Supporting cells
    Neuroglia
  31. 3 Functions of neuroglia:
    • -Providing the framework for the neural tissue
    • -Maintaining the intercellular environment
    • -Acting as phagocytes
  32. Largest and most numerous glial cells
    Astrocytes
  33. 5 Functions of Astrocytes:
    • -Maintaining the blood–brain barrier.
    • -Creating a three-dimensional framework for the CNS.
    • -Performing repairs in damaged neural tissue.
    • -Guiding neuron development.
    • -Controlling the interstitial environment.
  34. Macrophages of CNS
    Microglia (phagocytes)

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