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Physiology of the Brain Flashcards

7 cards from real TBI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Physiology of the Brain flashcards as text

  1. Which anterior pituitary hormone deficiency is most commonly reported after TBI?

    Answer: Growth hormone

    Growth hormone and gonadotropin deficiencies are the most frequent post-TBI pituitary abnormalities.

  2. Which findings suggest diabetes insipidus after TBI?

    Answer: Polyuria with dilute urine and hypernatremia

    Deficient ADH causes large volumes of dilute urine and rising serum sodium.

  3. SIADH after head injury is characterized by:

    Answer: Hyponatremia with concentrated urine

    Excess ADH retains water, causing dilutional hyponatremia with inappropriately concentrated urine.

  4. Loss of smell (anosmia) after head trauma most often results from injury to which structure?

    Answer: Olfactory nerve fibers at the cribriform plate

    Shearing of cranial nerve I fibers through the cribriform plate commonly causes post-traumatic anosmia.

  5. What is neuroplasticity?

    Answer: The brain's ability to reorganize and form new connections

    Neuroplasticity underlies recovery by allowing reorganization of neural pathways after injury.

  6. A coup-contrecoup injury refers to damage at:

    Answer: The impact site and the opposite side of the brain

    The brain strikes the skull at the impact site and rebounds to injure the opposite side.

  7. What is the maximum score for the verbal component of the Glasgow Coma Scale?

    Answer: 5

    Verbal response scores range 1–5, with 5 meaning oriented, while eye is 1–4 and motor 1–6.

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  1. biausa.org — Test dates, eligibility, fees, test delivery, exam format, passing score, retake fee, time limit, score validity, renewal · verified Nov 2026
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