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The motor cortex: anatomic substrates of function.

T P Naidich1, P R Hof, T A Yousry

  • 1Department of Radiology and Neurosurgery, Mt. Sinai Medical Center, New York, New York 10029, USA. thomas.naidich@mountsinai.org

Neuroimaging Clinics of North America
|August 8, 2001
PubMed
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This article details the anatomy of the motor cortex, including its regions and functions. Understanding these areas is crucial for interpreting functional MRI studies of motor control.

Area of Science:

  • Neuroscience
  • Anatomy
  • Motor Control

Background:

  • The motor cortex is essential for planning and executing voluntary movements.
  • Understanding its detailed anatomy is a prerequisite for advanced neuroimaging analysis.
  • Key areas include the primary motor cortex, supplementary motor area, and cingulate motor area.

Purpose of the Study:

  • To establish a foundational understanding of motor cortex anatomy.
  • To review the locations, Brodmann regions, functions, and deficits of key motor areas.
  • To prepare readers for interpreting functional MRI studies related to motor function.

Main Methods:

  • Review of gross anatomical features of the motor cortex.
  • Examination of microscopic (histological) details of motor cortex regions.

Related Experiment Videos

  • Compilation of existing knowledge on the function and dysfunction of specific motor areas.

    • Main Results:

    • Detailed description of the anatomical sites and Brodmann regions for each discussed motor area.
    • Summary of the normal functional roles of the primary motor cortex, supplementary motor area, presupplementary motor area, and cingulate motor area.
    • Outline of deficits associated with damage or dysfunction in these motor areas.

    Conclusions:

    • A comprehensive anatomical overview of the motor cortex is presented.
    • This foundational knowledge is vital for understanding functional neuroimaging results.
    • The article serves as a basis for further exploration of motor cortex function and disorders.