Basal Ganglia

Question 1

Basal ganglia consists of

Answer 1

the caudate and putamen, also called neostriatum

Question 2

BG receives input from

Answer 2

All areas of cortex, especially primary motor and somatosensory cortex

Question 3

Coritcal input provides sensory information and info about

Answer 3

movements planned and executed

Question 4

Input to putamen is from

Answer 4

Motor areas of brain - pathways are somatotopic throughout loop back to motor cortex

Question 5

Input to caudate is primarily from

Answer 5

Cognitive and emotional areas of brain

Question 6

BG also receives input from

Answer 6

substantia nigra, along with areas of cortex, especially Primary and somatosensory cortex

Question 7

Primary output of BG is

Answer 7

Through thalamus to primary, pre and sup motor areas that form a loop that allows influence of movements controlled by motor cortex based on the integration of sensory and motor input

Question 8

Primary output of BG is also, along with through thalamus, brain stem nuclei that control

Answer 8

ventrolateral pathways

Question 9

Two primary pathways in cortex

Answer 9

BG->thalamus->cortex loop

Question 10

Direct pathways is

Answer 10

excitatory

Question 11

Indirect pathways is

Answer 11

inhibitory