Neuroanatomy - Basal Ganglia Flashcards
basal ganglia are a part of a basic ——— circuit
feedback
the basal ganglia feed information back to the?
cortex
the basal ganglia feeds information back to the cortex via?
thalamus
what is the function of the basal ganglia?
modulate and refine cortical activity
what pathways are the basal ganglia controlling?
descending motor pathways
the anatomy of the basal ganglia is spread throughout the?
forebrain
the components of the basal ganglia can be divided into? (3)
input nuclei, output nuclei and intrinsic nuclei
which nuclei acts as the relay between input and output nuclei?
intrinsic nuclei
what are the input nuclei? (2)
caudate nucleus and putamen (neostriatum)
what forms the neostriatum?
caudate nucleus and putamen
where does the caudate nucleus and putamen join?
rostral aspect of the neostriatum
what is the name of the area where the caudate nucleus and putamen join?
nucleus accumbens
the nucleus accumbens is part of a separate domain named?
ventral striatum
what are the components of the intrinsic. nuclei? (3)
external globus pallidus
sub thalamic nucleus
pars compact of the substantial nigra
the globus pallidus is divided into?
external and internal domains
the external and internal domains of the globus pallidus are functionally
different
the sub thalamic nucleus lies in the?
diencephalon
in the mesencephalon the substantial nigra is divided into two parts?
the pars compact and the pars reticularis
what are the output nuclei?(2)
internal globus pallidus and pars reticulata of the substantial nigra
the caudate nucleus forms the —– wall of the ——– ventricle
lateral
lateral
the caudate nucleus follows the —— expansion during development?
telencephalic
when the caudate nucleus is fully developed it has a characteristic ventricular — shape?
C
caudate nucleus can be identified as the collection of —– matter on the wall of the lateral ventricles
gray
the caudate nucleus is separated from the putamen by —————— known as the internal capsule
descending white matter fibers
