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Chapter 3 Terms 1-35

Quiz by Susan Miscavage

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35 questions
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  • Q1
    The minimum length of time after an action potential during which another action potential cannot begin.
    Absolute refractory period
    30s
  • Q2
    A brief change in a neuron's electrical charge.
    Action potential
    30s
  • Q3
    An inherited characteristic that increased in a population (through natural selection) because it helped solve a problem of survival or reproduction during the time it emerged.
    Adaptation
    30s
  • Q4
    Research studies that assess hereditary influence by examining the resemblance between adopted children and both their biological and their adoptive parents.
    Adoption studies
    30s
  • Q5
    Axons that carry information inward to the central nervous system from the periphery of the body.
    Afferent nerve fibers
    30s
  • Q6
    A chemical that mimics the action of a neurotransmitter.
    Agonist
    30s
  • Q7
    A chemical that opposes the action of a neurotransmitter.
    Antagonist
    30s
  • Q8
    The system of nerves that connect to the heart, blood vessels, smooth muscles, and glands.
    Autonomic nervous system (ANS)
    30s
  • Q9
    A long, thin fiber that transmits signals away from the neuron cell body to other neurons, or to muscles or glands.
    Axon
    30s
  • Q10
    The brain and the spinal cord.
    Central nervous system (CNS)
    30s
  • Q11
    The convoluted outer layer of the cerebrum.
    Cerebral cortex
    30s
  • Q12
    The right and left halves of the cerebrum.
    Cerebral hemispheres
    30s
  • Q13
    A solution that fills the hollow cavities (ventricles) of the brain and circulates around the brain and spinal cord.
    Cerebrospinal fluid (CSF)
    30s
  • Q14
    Threadlike strands of DNA (deoxyribonucleic acid) molecules that carry genetic information.
    Chromosomes
    30s
  • Q15
    The structure that connects the two cerebral hemispheres.
    Corpus callosum
    30s

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