The mammillothalamic tract is a bundle of fibres running upwards from each mammillary body to the anterior nucleus of the thalamus. It is a key link in the memory circuit.
| Location | Within the hypothalamus and thalamus, from the mammillary body to the anterior thalamic nucleus |
|---|---|
| Parts |
|
| Connections | |
| Blood Supply | Posterior communicating artery perforators (thalamic tuberothalamic artery) |
Carries memory-related signals from the hypothalamus to the thalamus.
Small strokes damaging the tract cause sudden, lasting amnesia. It is damaged with the mammillary bodies in Wernicke-Korsakoff syndrome and is a deep brain stimulation target studied in epilepsy.
Severe memory loss after stroke interrupting the mammillothalamic tract.
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