Neuroanatomy & Physiology Quiz
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Questions and Answers

What is the basic functional unit of the nervous system?

  • Axon
  • Neuron (correct)
  • Synaptic vesicle
  • Dendrite
  • Which part of the nervous system contains clusters of nerve cell bodies with the same function?

  • Ganglia (correct)
  • Dendrite
  • Synaptic vesicle
  • Axon
  • What are glial cells responsible for in the nervous system?

  • Storing and releasing neurotransmitters
  • Supporting, protecting, and nourishing neurons (correct)
  • Forming myelinated sheath around axons
  • Generating electrical action potentials
  • What is the role of neurotransmitters in the nervous system?

    <p>Exciting or inhibiting the activity of target cells</p> Signup and view all the answers

    What can contribute to neurologic disorders in the nervous system?

    <p>Imbalances in neurotransmitters</p> Signup and view all the answers

    Study Notes

    • The Nervous System is composed of two main parts: the Central Nervous System (CNS) and Peripheral Nervous System.
    • The CNS includes the brain and spinal cord, which control motor, sensory, autonomic, cognitive, and behavioral activities.
    • The brain has over 100 billion cells, connecting motor and sensory pathways, maintaining homeostasis, and directing various activities through chemical and electrical messages.
    • A neuron is the basic functional unit of the Nervous System, consisting of dendrites, a cell body, and an axon. An axon may have a myelinated sheath for increased conduction speed.
    • Ganglia or nuclei are clusters of nerve cell bodies with the same function, while glial cells support, protect, and nourish neurons and outnumber them.
    • Neurons communicate through the release of neurotransmitters, which are manufactured and stored in synaptic vesicles and can excite or inhibit target cells.
    • Neurotransmitters are released during an electrical action potential and can be destroyed or reabsorbed by enzymes.
    • Imbalances in neurotransmitters can contribute to neurologic disorders.

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    Description

    Test your knowledge of neuroanatomy and physiology, focusing on the nervous system, altered levels of consciousness, intracranial pressure, seizures, and drugs affecting the nervous system.

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