P22(A)

30 Questions | Total Attempts: 181

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Blood Quizzes & Trivia

Questions and Answers
  • 1. 
    Through what area does the cerebrospinal fluid circulate around the brain and spinal cord?
    • A. 

      A. between the double layers of the dura mater

    • B. 

      B. in the subdural space

    • C. 

      C. in the subarachnoid space

    • D. 

      D. through the arachnoid villi

  • 2. 
    2. Which of the following is the usual location of language centers?
    • A. 

      A. left hemisphere

    • B. 

      B. right hemisphere

    • C. 

      C. brainstem

    • D. 

      D. hypothalamus

  • 3. 
    What would be the effect of damage to the auditory association area in the left hemisphere?
    • A. 

      A. loss of hearing in both ears

    • B. 

      B. inability to understand what is heard

    • C. 

      C. loss of hearing in the left ear

    • D. 

      D. inability to determine the source of the sound

  • 4. 
    Which of the following applies to the corticospinal tract?
    • A. 

      A. It is an ascending tract.

    • B. 

      B. The nerve fibers conduct sensory impulses.

    • C. 

      C. It is an extrapyramidal tract.

    • D. 

      D. It is a pyramidal tract for efferent impulses.

  • 5. 
    What is a major function of the limbic system?
    • A. 

      A. overall control of fluid balance

    • B. 

      B. required for logical thinking, reason, and decision making

    • C. 

      C. determines emotional responses

    • D. 

      D. responsible for artistic and musical talents

  • 6. 
    Where are beta-1 adrenergic receptors located?
    • A. 

      A. bronchiolar walls

    • B. 

      B. arteriolar walls

    • C. 

      C. cardiac muscle

    • D. 

      D. glands of the intestinal tract

  • 7. 
    What does a vegetative state refer to?
    • A. 

      A. depression of the RAS and inability to initiate action

    • B. 

      B. loss of awareness and intellectual function but continued brainstem function

    • C. 

      C. continuing intellectual function but inability to communicate or move

    • D. 

      D. disorientation and confusion with decreased responsiveness

  • 8. 
    Which of the following conditions is NOT part of the criteria for a declaration of “brain death”?
    • A. 

      A. no activity on EEG

    • B. 

      B. absence of all reflexes

    • C. 

      C. no spontaneous respirations

    • D. 

      D. presence of any head injury

  • 9. 
    What is the best definition of aphasia?
    • A. 

      A. the inability to comprehend or express language appropriately

    • B. 

      B. difficulty swallowing

    • C. 

      C. loss of the visual field contralateral to the area of damage

    • D. 

      D. the inability to articulate words clearly

  • 10. 
    What is an early indicator of increasing intracranial pressure?
    • A. 

      A. papilledema

    • B. 

      B. bilateral fixed dilated pupils

    • C. 

      C. decreasing responsiveness

    • D. 

      D. rapid heart rate

  • 11. 
    What is the rationale for vomiting with increased intracranial pressure?
    • A. 

      A. chemoreceptors responding to changes in the blood

    • B. 

      B. pressure extending to spinal nerves

    • C. 

      C. pressure on the emetic center in the medulla

    • D. 

      D. stimuli to the hypothalamic center for hunger and thirst

  • 12. 
    What is the typical change in blood pressure with increased intracranial pressure?
    • A. 

      A. increasing diastolic pressure

    • B. 

      B. decreasing systolic pressure

    • C. 

      C. systolic and diastolic pressures decreasing proportionately

    • D. 

      D. increasing pulse pressure

  • 13. 
    A brain tumor causes headache because the tumor:
    • A. 

      A. causes ischemic pain in the brain

    • B. 

      B. stretches the meninges and blood vessel walls

    • C. 

      C. erodes the skull

    • D. 

      D. compresses sensory fibers in cranial nerves

  • 14. 
    Which of the following causes papilledema?
    • A. 

      A. increased pressure of CSF at the optic disc

    • B. 

      B. increased intraocular pressure

    • C. 

      C. pressure on the oculomotor nerve

    • D. 

      D. pressure on the optic chiasm

  • 15. 
    What is the effect of an enlarging brain abscess on cardiovascular activity?
    • A. 

      A. increased heart rate and systemic vasodilation

    • B. 

      B. low blood pressure and irregular heart and respiratory rates

    • C. 

      C. systemic vasoconstriction and slower heart rate

    • D. 

      D. immediate depression of the cardiac control centers

  • 16. 
    As intracranial pressure rises, the pupil of the eye, ipsilateral to the lesion, becomes dilated and unresponsive to light because of pressure on the:
    • A. 

      A. optic nerve

    • B. 

      B. PNS fibers in cranial nerve III

    • C. 

      C. SNS nerve to the eye

    • D. 

      D. occipital lobe

  • 17. 
    Which of the following characteristics indicates that the CSF is normal?
    • A. 

      A. cloudy and pale yellow color

    • B. 

      B. presence of erythrocytes

    • C. 

      C. presence of numerous leukocytes

    • D. 

      D. clear and colorless fluid

  • 18. 
    Which of the following statements is TRUE about malignant brain tumors?
    • A. 

      A. Most brain tumors arise from malignant neurons.

    • B. 

      B. Primary brain tumors rarely metastasize outside the CNS.

    • C. 

      C. The blood-brain barrier prevents secondary brain tumors.

    • D. 

      D. Brainstem tumors do not manifest signs until they are quite large.

  • 19. 
    What would be the expected effect of a tumor developing in the inferior part of the left frontal lobe?
    • A. 

      A. numbness in the right leg

    • B. 

      B. weakness in the right side of the face

    • C. 

      C. paralysis in the left leg

    • D. 

      D. dizziness and loss of balance

  • 20. 
    Why are focal or generalized seizures an early indication of a brain tumor?
    • A. 

      A. Surrounding inflammation stimulates neurons to discharge spontaneously.

    • B. 

      B. Malignant tumors cause alkalosis, exciting the CNS.

    • C. 

      C. Systemic effects of the brain tumor may cause seizures.

    • D. 

      D. Metabolic effects of cancer change blood chemistry to trigger seizures.

  • 21. 
    Which of the following is a TRUE statement about transient ischemic attacks?
    • A. 

      A. They usually cause necrosis and permanent brain damage.

    • B. 

      B. Rupture of an aneurysm or damaged artery may cause a TIA.

    • C. 

      C. They usually indicate systemic hypertension.

    • D. 

      D. They often warn of potential cerebrovascular accidents.

  • 22. 
    What is the probable source of an embolus causing a CVA?
    • A. 

      A. right ventricle of the heart

    • B. 

      B. femoral vein

    • C. 

      C. common carotid artery

    • D. 

      D. pulmonary artery

  • 23. 
    Collateral circulation is most likely to be present when a CVA results from:
    • A. 

      A. rupture of a cerebral artery

    • B. 

      B. an embolus

    • C. 

      C. development of an atheroma

    • D. 

      D. vasospasm in the cerebral circulation

  • 24. 
    All of the following apply to CVA EXCEPT:
    • A. 

      A. the common cause is an atheroma with thrombus

    • B. 

      B. maximum necrosis and infarction develop within several hours of onset

    • C. 

      C. warning signs may appear with partial obstruction of the artery

    • D. 

      D. increasing neurologic deficits usually develop during the first few days

  • 25. 
    What would be the effect of infarction owing to obstruction in the right anterior cerebral artery?
    • A. 

      A. some visual loss

    • B. 

      B. sensory deficit involving the upper body

    • C. 

      C. aphasia

    • D. 

      D. contralateral weakness in the leg, impaired spatial relationships

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