Merck Manual

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Locating the Basal Ganglia

Locating the Basal Ganglia

The basal ganglia are collections of nerve cells located deep within the brain. They include the following:

  • Caudate nucleus (a C-shaped structure that tapers to a thin tail)

  • Putamen

  • Globus pallidus (located next to the putamen)

  • Subthalamic nucleus

  • Substantia nigra

The basal ganglia help initiate and smooth out muscle movements, suppress involuntary movements, and coordinate changes in posture.

Locating the Basal Ganglia