What is striatocapsular region?
The striatocapsular area was defined as an area including the caudate nucleus, putamen, globus pallidus, anterior and posterior limbs of the internal capsule, and subinsular area, which are supplied by the anterior choroidal, Heubner’s, and medial and lateral lenticulostriate arteries (Ghika et al., 1990).
What is a Striatocapsular infarct?
Striatocapsular infarcts, also known as basal ganglionic capsular infarcts are infarcts involving the caudate nucleus, putamen, and anterior limb of the internal capsule without any involvement of the cortex, caused by either a complete or partial proximal middle cerebral artery occlusion.
What are the symptoms of infarction in the territory of left Lenticulostriate artery?
The clinical aspects of lenticulostriate infarction should be properly differentiated from those of other anterior circulation infarcts. Clinical signs include motor deficit, sensory deficit and cognitive dysfunction. The principal mechanism for lenticulostriate infarction seems to be an embolism of cardiac origin.
What does the internal capsule do in the brain?
The internal capsule describes a region deep in the brain that functions as a communication pathway. The internal capsule allows communication between areas of the cerebral cortex and areas of the brainstem.
Where do lenticulostriate arteries arise from?
The lenticulostriate arteries, also known as anterolateral central arteries, are a collection of small perforating arteries arising from the anterior part of the circle of Willis and supplying the basal ganglia.
What does Lenticulostriate mean?
Adjective. lenticulostriate (not comparable) (anatomy) Relating to the lentiform nucleus and the striatum quotations ▼ (anatomy) Relating to the lenticulostriate arteries (a group of small arteries arising at the commencement of the middle cerebral artery) or the territory supplied by those arteries.
What does the internal capsule connect?
The internal capsule is a white matter structure situated in the inferomedial part of each cerebral hemisphere of the brain. It carries information past the basal ganglia, separating the caudate nucleus and the thalamus from the putamen and the globus pallidus.
Why is the internal capsule vulnerable to the damaging effects of adverse vascular events?
The internal capsule is prone to cerebrovascular accidents because the perforating arteries that supply the region are predisposed to occlusion or rupture due to their small diameter. Ischemic strokes secondary to blockage of the perforating arteries are known as lacunar strokes.
Why is striatum important?
The striatum is one of the principal components of the basal ganglia, a group of nuclei that have a variety of functions but are best known for their role in facilitating voluntary movement. We can see the importance of the basal ganglia in movement by looking at the overt symptoms of someone with Parkinson’s disease.
What is the striatum important for?
Functionally, the striatum coordinates multiple aspects of cognition, including both motor and action planning, decision-making, motivation, reinforcement, and reward perception. The striatum is made up of the caudate nucleus and the lentiform nucleus.