MA 161

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MA 161
2011-07-23 04:04:20
Nervous System Scantron Words

Ch. 10 Nervous System Scantron Words
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  1. autonomic nervous system
    nerves that control involuntary body functions of muscles, glands, and internal organs
  2. blood-brain barrier
    blood vessels (capillaries) that selectively let certain substances enter the brain tissue and keep other substances out
  3. central nervous system
    brain and the spinal cord
  4. dendrite
    microscopic branching fiber of a nerve cell that is the first part to receive the nervous impulse
  5. efferent nerve
    carries messages away from the brain and spinal cord; motor nerve
  6. neuron
    nerve cell that carries impulses throughout the body
  7. neurotransmitter
    chemical messenger released at the end of a nerve cell. It stimulates or inhibits another cell, which can be a nerve cell, muscle cell, or gland cell. Examples of neurotransmitters are acetylcholine, norepinephrine, dopamine, and serotonin.
  8. peripheral nervous system
    nerves outside the brain and spinal cord; crainal, spinal, and autonomic nerves
  9. receptor
    organ that receives a nervous stimulus and passes it on to afferent nerves. The skin, ears, eyes, and taste buds are receptors.
  10. sensory nerve
    carries messages toward the brain and spinal cord from a receptor; afferent nerve
  11. sympathetic nerves
    autonomic nerves that influence bodily functions involuntarily in times of stress
  12. vagus nerve
    tenth crainal nerve (cranial nerve X); its branches reach to the larynx, trachea, bronchi, lungs, aorta, esophagus, and stomach. Latin vagus means wandering. Unlike the other crainal nerves, the vagus leaves the head and "wanders" into the abdominal and thoracic cavities.
  13. ventricles of the brain
    canals in the brain that contain cerebrospinal fluid
  14. Alzheimer disease (AD)
    brain disorder marked by gradual and progressive mental deterioration (dementia), personality changes, and impairment of daily functioning.
  15. epilepsy
    chronic brain disorder characterized by recurrent seizure activity
  16. myasthenia gravis (MG)
    autoimmune neuromuscular disorder characterized by weakness of voluntary muscles.
  17. palsy
    paralysis (partial or complete loss of motor function)
  18. Parkinson disease
    degeneration of neurons in the basal ganglia, occurring in later life and leading to tremors, weakness of muscles, and slowness of movement.
  19. herpes zoster (shingles)
    viral infection affecting peripheral nerves
  20. cerebral contusion
    bruising of brain tissue as a result of direct trauma to the head; neurologic deficits persist longer than 24 hours.
  21. cerebrovascular accident (CVA)
    disruption in the normal blood supply to the brain; stroke
  22. migraine
    severe, recurring, unilateral, vascular headache
  23. Computed tomography of the brain (CT)
    X-ray technique that generates computerized multiple images of the brain and spinal cord.
  24. Doppler ultrasound studies
    sound waves detect blood flow in the carotid and intracranial arteries
  25. lumbar puncture (LP)
    CSF is withdrawn from between two lumbar vertebrae for analysis