Which of the following is true of stereotaxic surgery?
A) A stereotaxic instrument does not require coordinates from a brain atlas.
B) The carrier arm can be manipulated in two dimensions.
C) The head-holder is designed to fix the skull in a rigid position.
D) The stereotaxic instrument is useful for implanting magnetic coils into brain.
E) The surgery can be accomplished by inserting an electrode by hand into the brain.

Question

Quizplus · Accepted Answer

The head-holder is an important component of stereotaxic surgery as it is designed to fix the skull in a rigid position so that precise coordinates can be determined and targeted brain regions can be accessed with accuracy. Option A is incorrect as coordinates from an atlas or other reference material are typically needed. Option B is incorrect as stereotaxic instruments can be manipulated in three dimensions. Option D is incorrect as stereotaxic surgery is primarily used for procedures such as neurobiological research, deep brain stimulation, and lesion placement, and not for implanting magnetic coils. Option E is incorrect as a stereotaxic instrument is typically used to guide the insertion of an electrode.

Which of the Following Is True of Stereotaxic Surgery