A Lesion at a Particular Level of the Spinal Cord

question 14

Multiple Choice

A lesion at a particular level of the spinal cord:

• A)can impair function at the level of the lesion and below
• B)impairs function at the level of the lesion only
• C)impairs function at the level of the lesion and above
• D)impairs movement,but not sensation

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Definitions:

Stimuli

Any external or internal event or object that influences reactions or responses from a biological organism or system.

Tone Sensitivity

The ability to distinguish different frequencies of sound or musical notes.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time.

Difference Threshold

The minimum difference between two stimuli required for detection 50 percent of the time. We experience the difference threshold as a just noticeable difference (or jnd).