INT PHYS EXAM 1

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ffloyd
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98269
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INT PHYS EXAM 1
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2011-09-29 14:30:56
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INTEGRATIVE PHYSIOLOGY EXAM1 afferent pathways CNS brain spinal cord
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INT PHYS4125 EXAM 1
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  1. The frontal lobe contains what 2 functional areas and what do those areas do?
    • 1) Prefrontal area: elaborate thinking / planning complex movement
    • 2) Motor area: controls small muscles of eye, mouth, hand, etc / coordinates movements / articulation of words
  2. What functional area does the parietal lobe contain and what does it do?
    Somesthetic area: receives sensations of touch, temp, and pain from the body
  3. What functional area does the occipital lobe contain and what does it do?
    Visual area: detects visual signals
  4. What 3 functional areas are contained in the temporal lobe and what do they do?
    • 1) Auditory area: detects auditory signals
    • 2) Wernicke's area: interprets the meaning / significance of words
    • 3) Short-term memory area: stores memories lasting a few seconds
  5. What are the 4 main functions of the nervous system and how are they achieved?
    • 1) detect information
    • 2) recognize significance
    • 3) "decide" on a responce
    • 4) execute an action
    • Achieved by neural communication via neural pathways
  6. Explain the difference between affective and cognitive behavior.
    • Affective: related to feeling and emotion
    • Cognitive: related to thinking
  7. Summarize the reflex pathway.
    An internal/external change occurs - change is detected by a receptor - signal is carried on afferent path via sensory neurons - signal arrives at nervous system integrating center - signal is carried on efferent path via efferent neuron - signal reaches effector - response to change
  8. The Afferent (Sensory) Pathway carries info from _NS to the _NS
    The Afferent (Sensory) Pathway carries info from PNS to the CNS
  9. The Efferent (Motor) Pathway carries info from ___ to ______ ________
    The Efferent (Motor) Pathway carries info from CNS to effector organ(s)
  10. What are the 2 types of efferent pathways and what do they do?
    • 1) Autonomic Nervous System: controls internal organs
    • 2) Somatic Motor Division: controls skeletal muscle
  11. What are the 2 subsystems of the ANS?
    • 1) sympathetic system
    • 2) parasympathetic system
  12. The PNS and CNS are linked by what?
    Bundles of neurons (nerve pathways)
  13. How many pairs of cranial nerves and how many pairs of spinal nerves?
    12 pairs of cranial nerves - originating from brain stem and are mixed / afferent or efferent

    31 pairs of spinal nerves - orininating from spine and are all mixed
  14. Cranial nerves : O O O T T A F V G V A H
    olfactory, optic, ocularmotor, trochlear, trigeminal, abducens, vestibulocochlear, glossopharyngeal, vagus, accessory spinal, hypoglossal
  15. Olfactory nerve
    #
    type
    function
    • Olfactory nerve
    • #: 1
    • type : sensory
    • function : smell
  16. Optic nerve
    #
    type
    function
    • Optic nerve
    • #: 2
    • type : sensory
    • function : vision
  17. Oculomotor nerve
    #
    type
    function
    • Oculomotor nerve
    • #: 3
    • type : motor
    • function : eye movement
  18. Trochlear nerve
    #
    type
    function
    • Trochlear nerve
    • #: 4
    • type: motor
    • function: eye movement
  19. Trigeminal nerve
    #
    type
    function
    • Trigeminal nerve
    • #: 5
    • type: both
    • function: chewing movement and sensitivity in face
  20. Abducens nerve
    #
    type
    function
    • Abducens nerve
    • #: 6
    • type: motor
    • function: eye movement
  21. Facial nerve
    #
    type
    function
    • Facial nerve
    • #: 7
    • type: both
    • function: move facial expressions and taste on front 2/3 of tongue
  22. Vestibulocochlear nerve
    #
    type
    function
    • Vestibulocochlear nerve
    • #: 8
    • type: sensory
    • function: hearing / balance
  23. Glossopharyngeal nerve
    #
    type
    function
    • Glossopharyngeal nerve
    • #: 9
    • type: both
    • function: movement of pharynx and salivary secretion and taste from back 1/3 of tongue
  24. Vagus nerve
    #
    type
    function
    • Vagus nerve
    • #: 10
    • type: both
    • function: sensitivity and movement of heart / lungs / GI tract / larynx
  25. Accessory spinal nerve
    #
    type
    function
    • Accessory spinal nerve
    • #: 11
    • type: motor
    • function: movement of neck, swallowing, viscera
  26. Hypoglossal nerve
    #
    type
    function
    • Hypoglossal nerve
    • #: 12
    • type: motor
    • function: tongue movement
  27. In the Geschwind Model of Language, what does the primary motor cortex do?
    makes speech
  28. In the Geschwind Model of Language, what does the Broca's area do?
    Plans speech / language expression
  29. In the Geschwind Model of Language, what does the arcuate fasciculus do?
    connects Wernicke's area to Broca's area
  30. In the Geschwind Model of Language, what does the angular gyrus do?
    recognizes the written word
  31. In the Geschwind Model of Language, what does Wernicke's area do?
    comprehend speech
  32. Which brain hemisphere is most important for language?
    • Left hemisphere
    • Language = Left

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