Nucleus · one in each half of the brain
Ventral lateral nucleus of the thalamus
Also called VL, Vim (its tremor-treatment part)
Where the cerebellum's timing and the basal ganglia's choices meet on the way to motion.
The ventral lateral nucleus is the thalamus's main movement relay. It receives signals from the cerebellum (for timing and coordination) and from the basal ganglia, and forwards them to the motor cortex that moves your body. A part of it called Vim is a common target for treatments that stop tremor.
Where it is
Along the lower outer edge of the thalamus, behind the ventral anterior nucleus and in front of the ventral posterior nucleus.
What it does
Cerebellum relay
It carries timing and coordination signals from the cerebellum to the motor cortex.
Basal ganglia relay
Its front part receives the basal ganglia's output, helping launch chosen movements.
Driving the motor cortex
It sends a strong stream of signals to the motor strip, which controls your muscles.
Tremor pathway
The shaking of tremor travels through its Vim area, which is why calming this spot can stop the shaking.
Think of it as a sound mixing desk, blending the drummer's timing (cerebellum) with the director's choices (basal ganglia) before sending the final mix to the speakers.
Works with
- Dentate nucleusThe cerebellum's output station, which sends it coordination signals.
- CerebellumSupplies the timing and fine-tuning that make movements smooth.
- Primary motor cortexThe motor strip it drives, which sends commands to your muscles.
- Motor stripReceives its combined movement signals.
- Internal globus pallidus (GPi)Keeps its front part under a brake until an action is chosen.
- Ventral anterior nucleus of the thalamusIts close partner. Together they are often called the VA/VL complex.
When it goes wrong
Tremor treatment
Brain pacemakers aimed at the Vim can greatly reduce shaking in essential tremor and some Parkinson's tremor.
Clumsiness after stroke
Damage here can cause clumsiness and unsteadiness on the opposite side of the body, because the cerebellum's signals can no longer reach the cortex properly.
For learning only, not medical advice. If you have a health concern, talk to a doctor.
Surprising facts
- Brain pacemakers for tremor grew out of a surprise in 1987: while testing a tremor spot in the thalamus with fast electrical pulses, a surgeon in France saw a patient's shaking stop.
- Patients are often awake during surgery here, so doctors can check the tremor as they go, and it can fade right there on the table.
Where the name comes from
"Ventral" means toward the bottom and "lateral" means toward the side.
Learn it in a lesson
- The thalamusThe brain's relay station. A short guided lesson in 3D.
Quick quiz
3 questions. Your answers are saved and come back in your daily review.
Which of these is a job of the ventral lateral nucleus?
Show the answer
Cerebellum relay. It carries timing and coordination signals from the cerebellum to the motor cortex.
Cerebellum relay. It carries timing and coordination signals from the cerebellum to the motor cortex.
The ventral lateral nucleus is part of which larger structure?
Show the answer
Thalamus. It belongs to the thalamus.
Thalamus. It belongs to the thalamus.
Which part fits this description? "Like a sound mixing desk, blending the drummer's timing (cerebellum) with the director's choices (basal ganglia) before sending the final mix to the speakers."
Show the answer
Ventral lateral nucleus. It is the ventral lateral nucleus. Where the cerebellum's timing and the basal ganglia's choices meet on the way to motion.
Ventral lateral nucleus. It is the ventral lateral nucleus. Where the cerebellum's timing and the basal ganglia's choices meet on the way to motion.
These parts now come back in your daily review, just before you would forget them.
Practice it and its neighbors in 3DSources
- Thalamic nuclei: Connections, functions and anatomy, Kenhub
- Deep Brain Stimulation, StatPearls, NCBI Bookshelf
- Deep brain stimulation for Parkinson's disease, Lasker Foundation
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Explore the ventral lateral nucleus of the thalamus in 3D
Turn it around, zoom inside and see how it connects to the rest of the brain, then test yourself with quick quizzes.
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