Clinical medicineLesson 1 of 5 in the course The Neurological Exam

Neurological Examination, Localization, and Causes of Deficits

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

The neurological exam is a practical clinical tool for assessing nervous-system function and identifying which structures may be affected by damage or disease. Even a brief examination can provide important information, particularly in an emergency. This lesson introduces the exam’s major sections and the functions each evaluates.

The neurological exam is a series of subtests that help determine whether neurological function is impaired and provide clues about where a problem may be located. A rapid assessment can sometimes be completed in about five minutes. In emergency care, quickly identifying a deficit can guide further investigation and treatment, potentially affecting the extent of recovery.

All flashcards

What is localization of function?
The principle that specific nervous-system regions are responsible for particular functions.
What does the cranial nerve exam assess?
Sensory and motor functions associated with the 12 cranial nerves, as applicable.
Where are language functions commonly localized in most individuals?
Across regions from the superior temporal to posterior frontal lobe, with connections through the inferior parietal lobe.
Which nervous-system component is affected in multiple sclerosis?
Myelin is affected in the central nervous system.
What is the purpose of a neurological exam?
To assess nervous-system function and help identify possible deficits and their location.

Quiz questions

  1. What is the main mechanism of an ischemic stroke?Answer: Blood flow to an area of the brain is blocked or narrowed.
  2. What happens in a hemorrhagic stroke?Answer: A damaged blood vessel bleeds into the brain.
  3. Why can a neurological exam help localize a deficit?Answer: Patterns of affected functions can suggest which nervous-system regions are involved.
  4. How can impaired control of speech muscles affect clinical interpretation?Answer: It can make speech seem language-impaired even when other language abilities remain intact.
  5. Why should neurological findings be interpreted alongside a patient's history and other assessments?Answer: Together, they help guide clinical reasoning and appropriate further evaluation.

Based on Anatomy and Physiology 2e by J. Gordon Betts, Kelly A. Young, James A. Wise, Eddie Johnson, Brandon Poe, Dean H. Kruse, Oksana Korol, Jody E. Johnson, Mark Womble, Peter DeSaix (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

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