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Connections of basal ganglia:

Premotor cortex

VL thalamus

Globus pallidus

Cortical neuron

Putamen

Substantia nigra

Important facts to remember about basal ganglia:

  • -

    inputs to caudate and putamen are excitatory (_______________

___________________________________________________).

  • -

    Caudate and putamen neurons (__________________________) are

normally quiet and project to Globus pallidus.

- Globus pallidus neurons ( ) are normally _______________________ _______ - project to, and inhibit, ventral lateral nucleus of thalamus. - neurons in ventral lateral nucleus of thalamus are __________

(_________) and project to premotor and supplementary motor areas of the frontal lobe.

  • -

    there is a _____ pathway going through the internal Globus pallidus.

  • -

    there is an _________ pathway going through the external Globus

pallidus via the subthalamic nucleus.

  • -

    activation of both direct or indirect pathways lead to _______ of the

internal Globus pallidus and

_____________

of thalamic nucleus.

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