What happens in basal ganglia stroke?
What happens in basal ganglia stroke?
This type of stroke occurs when blood leaks from a burst, torn, or unstable blood vessel into the tissue in the brain. The buildup of blood can create swelling, pressure, and, ultimately, brain damage. Many basal ganglia strokes are hemorrhagic strokes, which often result from uncontrolled high blood pressure.
What is the basal ganglia responsible for?
The “basal ganglia” refers to a group of subcortical nuclei responsible primarily for motor control, as well as other roles such as motor learning, executive functions and behaviors, and emotions.
Is a basal ganglia stroke a lacunar stroke?
A stroke in a deep area of the brain (for example, a stroke in the thalamus, the basal ganglia or pons) is called a lacunar stroke. These deeper structures receive their blood flow through a unique set of arteries.
What is the role of the basal ganglia in movement?
The basal ganglia are thought to help to inhibit these types of contradictory movements, allowing for a reaching movement that’s smooth and fluid. These thalamic neurons in turn project to the motor cortex (an area of the brain where many voluntary movements originate) and can stimulate movement via these connections.
What happens when there is damage to the basal ganglia?
A basal ganglia stroke can damage important functions in the brain. Blood carries oxygen to the brain. When the blood flow to an area of the brain is restricted or stopped, the brain does not receive enough oxygen. Oxygen deprivation injures brain cells in that area, and they die as a result.
What causes a basal ganglia bleed?
Basal ganglia haemorrhage is a common form of intracerebral haemorrhage, and usually as a result of poorly controlled long-standing hypertension. The stigmata of chronic hypertensive encephalopathy are often present (see cerebral microhaemorrhages).
What is a basal stroke?
What is a basal ganglia stroke? A stroke is a medical emergency that can occur when the blood supply to part of the brain is cut off or when a blood vessel in the brain bursts and releases blood into the brain tissue.
What does the basal ganglia do in the brain?
Located in the middle part of the brain, the basal ganglia is the area of the brain that is responsible for a great deal of motor control and learning.
