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5 Written questions

5 Matching questions

  1. motor neuron
  2. myelin sheath
  3. spinal cord
  4. central nervous system
  5. frontal lobes
  1. a part of central nervous system beginning inferior to brainstem down to L2 vertebrae;
    conducts sensory info to brain and motor commands from brain to muscles;
    center is gray matter; external is white matter;
    CSF in central canal and surrounding cord
  2. b neuroglial wrapping around an axon;
    insulates electricity inside the axon;
  3. c portions of cerebrum anterior to central fissure;
    generates motor commands;
    specializes in speech, language, morality, planning, and other high-level functions
  4. d brain and spinal cord;
    fast communicating organ system; receives sensory input; controls homeostasis (often via endocrine system); controls motor output; center of all mental activity including thought, feeling, learning & memory, and consciousness; aka CNS
  5. e carry movement commands (as action potentials) from CNS to muscle cells via descending tracts;
    aka Efferent neuron ("Efferent Exits" brain)

5 Multiple choice questions

  1. cerebrum
    diencephalon
    cerebellum
    brain stem
  2. quick electrical charge that travels "down" an axon towards synapse; Na+, K+, and Ca++ ions vital to this function; causes neurotransmitter release at synapse;
    aka neural impulse or "electrical signal"
  3. myelinated axons;
    in cerebrum, deep to gray matter & bulk of cerebral tissue
  4. convolution or ridge on surface of cerebrum;
    plural gryi
  5. thin delicate and deepest meninges layer, directly on brain and spinal cord;
    "pious mother" or "tender mother"

5 True/False questions

  1. venrtricle1 of 4 cavities in brain, which creates and is filled with cerebrospinal fluid

          

  2. cerebrumlargest portion of brain;
    covered with gyri and sulci;
    divided into 2 hemispheres; outermost layer called the cerebral cortex; further divided into 4 lobes: frontal, parietal, temporal, occipital

          

  3. nodes of Ranviergaps in myelin sheath that assist in conduction of action potential

          

  4. dura materhard thick outer layer of meninges;
    "hard mother"

          

  5. hypothalamusbrain's "sensory switchboard" in diencephalon (above brainstem);
    almost all sensory information goes through thalamus and directed to specific cortex regions; cortex also sends replies and motor commands to the cerebellum and medulla through thalamus;
    involved in consciousness and wakefulness (damage can cause coma)