1c Basal Ganglia - Motor Loop

Question 1

What are the three parallel loops of the basal ganglia & cortex?

Answer 1

motor, cognitive, limbic

Question 2

What structure makes up the Dorsal Pallidum?

Answer 2

Globus Pallidus int + ext

Question 3

What structure makes up the Ventral Pallidum?

Answer 3

Innominata

Question 4

What is the basic structure of a parallel loop?

Answer 4

cortex –> striatum –> pallidal component –> thalamus –> cortex

Question 5

What broad areas of the cortex send a signal to initiate a Motor Loop?

Answer 5

sensorimotor cortex, supplementary motor cortex, premotor cortex

Question 6

Where does the cortex signal go in the motor loop?

Answer 6

Putamen

Question 7

In the motor loop, to where does the Putamen project?

Answer 7

Globus Pallidus (ext/int), but MOSTLY to Substantia Nigra Reticulata SNr

Question 8

What Thalamic nuclei are targeted in the motor loop from the Globus Pallidus?

Answer 8

Ventral Lateral, Ventral Anterior

Question 9

Where does the thalamus send the signal of a motor loop?

Answer 9

premotor cortex