Basal Ganglia (Karius)

Question 1

parts of the substantia nigra

Answer 1

pars compacta

pars reticulata

Question 2

what makes up the striatum

Answer 2

putamen

caudate nucleus

Question 3

where does SNPC send info and what NT

-receptors

Answer 3

sends dopamine to striatum

• D1 receptors are (+)
• D2 receptors are (-)

Question 4

how does striatum get excited

Answer 4

EAA from corticostriatal fibers

Ach from intrastriatal system

Question 5

where does striatum send input to

-excitatory are inhibitory

Answer 5

to GPi and SNPR

-releases GABA so inhibitory

Question 6

where do the SNPR and GPi project to and what NTs

Answer 6

to the thalamus

-release GABA, inhibitory

Question 7

direct pathway dopamine

Answer 7

SNPC release domaine and bind D1 receptors which allows motion

Question 8

indirect path dope

Answer 8

SNPC release dopamine which binds D2 receptors which inhibits, excited by EAA/Ach
inhibits motion

Question 9

voluntary motion: association cortex 2 major areas of function

Answer 9

planning of complex motor actions

carrying out of thought processes

Question 10

planning of complex motor actions the prefrontal cortex interacts with what

Answer 10

PTO association area and all levels of motor cortex

Question 11

planning of a complex motor act requires what

Answer 11

supplementary motor cortex
frontal association area
premotor cortex
cerebrocerebullum
and basal ganglia (deciding if motion occurs)