Neuroanatomy Lesions Quiz
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Questions and Answers

Which of the following organs would NOT experience vasoconstriction?

  • Kidneys
  • Liver
  • Splanchnic organs
  • Skeletal muscle (correct)
  • Which statement accurately describes the dorsal root ganglia?

  • Round cells with one process leaving the body (correct)
  • None of these
  • Origin of afferent fibers
  • Both of these
  • What is the expected result of stimulating the vagus nerve?

  • Decreased blood pressure and increased cardiac contractility
  • Vasodilation and bradycardia
  • Vasoconstriction and increased heart rate
  • Vasodilation and tachycardia (correct)
  • Which neurological level, supplied by the femoral nerve, spans the anterior thigh immediately at and above the knee joint?

    <p>L4</p> Signup and view all the answers

    What term refers to an orderly series of spinal nerves supplying a strip-like area of skin?

    <p>Dermatome</p> Signup and view all the answers

    What type of fibers pass through the dorsal root of the spinal cord?

    <p>Both A and B</p> Signup and view all the answers

    Where is the sensory function of the nerve root exiting below the fifth lumbar vertebra located?

    <p>Plantar aspect of the heel</p> Signup and view all the answers

    What nerve damage is suspected when a patient presents with ptosis and miosis of the right eye with loss of facial sweating?

    <p>Sympathetic nerve damage with Horner’s Syndrome</p> Signup and view all the answers

    Atrophy of the first dorsal interosseous muscle may indicate damage to which roots?

    <p>C5 and C6</p> Signup and view all the answers

    Compression of the C6 spinal root is easily confused with damage to which nerve?

    <p>Radial nerve</p> Signup and view all the answers

    Which maneuver would best assess for weakness in S1 radiculopathy?

    <p>Squatting and arising</p> Signup and view all the answers

    Where is the lesion most likely situated?

    <p>Pontine Tegmentum</p> Signup and view all the answers

    Which symptom is NOT a result of lesions of the vagus nerve?

    <p>Loss of the corneal reflex</p> Signup and view all the answers

    What deficit will NOT be caused by a lesion of cranial nerve VII proximal to its entry into the central nervous system?

    <p>Hyperacusis</p> Signup and view all the answers

    Which nerve innervates the pharyngeal mucosa for the pharyngeal (gag) reflex?

    <p>Glossopharyngeal</p> Signup and view all the answers

    How old is the man who falls from his motorcycle and lands in a creek?

    <p>24 years old</p> Signup and view all the answers

    Death may result from bilateral severance of which nerve?

    <p>Vagus nerve</p> Signup and view all the answers

    Which cranial nerve is NOT involved in the signs or symptoms produced by the interruption of its fibers?

    <p>CN 10</p> Signup and view all the answers

    Which structure is NOT a derivative of the Metencephalon?

    <p>Rhombencephalon</p> Signup and view all the answers

    Through which structure does cerebrospinal fluid enter the third ventricle?

    <p>Cerebral aqueduct</p> Signup and view all the answers

    What is the structure that joins the third ventricle to the fourth ventricle in the midbrain?

    <p>Cerebral aqueduct of sylvius</p> Signup and view all the answers

    Which sulcus of the brain is closely associated with the motor and sensor areas?

    <p>Central sulcus</p> Signup and view all the answers

    What is the term used to describe the folds and furrows in the cerebral cortex that increase the total surface area?

    <p>Gyrus</p> Signup and view all the answers

    The corpus callosum is an example of what type of brain fiber?

    <p>Association</p> Signup and view all the answers

    Which specialized tissue in the ventricles primarily forms cerebrospinal fluid?

    <p>Choroid plexus</p> Signup and view all the answers

    Changes in personality and behavior primarily involve which lobe of the brain?

    <p>Frontal</p> Signup and view all the answers

    Which of the following is NOT a function of the cerebrum?

    <p>Regulation of body temperature</p> Signup and view all the answers

    Which of the following is NOT a predominant function of the left hemisphere?

    <p>Mathematical ability</p> Signup and view all the answers

    A syndrome involving disorientation, dysgraphia, and dyscalculia due to lesions in the angular gyrus on the dominant parietal lobe is known as:

    <p>Gerstmann’s syndrome</p> Signup and view all the answers

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