Which Instrument Is Used to Extract Pieces of the Nucleus

question 10

Multiple Choice

Which instrument is used to extract pieces of the nucleus pulposus in a diskectomy?

• A) Kerrison rongeur
• B) nerve root retractor
• C) Penfield dissector
• D) pituitary rongeur

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Definitions:

Alzheimer's Disease

A progressive neurological disorder that causes memory loss and cognitive decline due to the death of brain cells.

Actual Drug

Refers to a pharmaceutical compound that has a therapeutic effect when administered, as opposed to a placebo which has no pharmacological effect.

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Extraneous Variable

Any variable that is not intentionally studied in the experiment, which can affect the outcome and potentially confound the results if not controlled.