BAsal Ganglia Flashcards
What makes up the corpus striatum?
Caudate nucleus and lentiform nucleus
What makes up the lentiform nucleus (medially and laterally)?
Putamen , laterally
Globes pallidus, medially
What makes up the basal ganglia
- Corpus striatum
- Amygdaloid nuclei
- Claustrum
Claustrum lies lateral to what?
Lentiform nucleus
How is the Claustrum separated from the lentiform nucleus
External capsule
How is the Claustrum separated from grey matter of the insula?
By extreme capsule
The head of the caudate nucleus is continuous with what?
Putamen of lentiform nucleus
Where does the head of the caudate nucleus bulge into?
Anterior horn of the lateral ventricle
Where does the body of the caudate nucleus lie?
In the floor of the body of the lateral ventricle
Where does the tail of the caudate nucleus lie?
In the roof of the inferior horn of the lateral ventricle
The tip of the tale of the caudate nucleus is continuous with?
The amygdaloid nuclei
How is the lentiform enclosed medially and laterally
External capsule - laterally
Internal capsule - medially
The lentiform is divided into two parts by?
External medullary lamina
What makes up the neostriatum?
Caudate & Putamen
Which recieves affarents? Neostriatum or paleostriatum?
Neostriatum
Which sends all efferents ? Neostriatum or paleostriatum?
Paleostriatum
What is paleostriatum made off?
Globes pallidus
The substantia nigra is divided into?
Pars compacta and pars reticulata
Where is the subthalamic nucleus located?
Lateral to the red nucleus
Dorsal to substantia nigra
Functions of basal ganglia
Muscular activity
Help motor cortex in learning of motor skills
Prepare body posture to suit the movement
Arteries supplying basal ganglia
Central branches of anterior and middle cerebral arteries
Which vein doe the veins of basal ganglia drain into?
Thalamostriate vein
