What is thalamus function?
What is thalamus function?
Generally, the thalamus acts as a relay station filtering information between the brain and body. Except for olfaction, every sensory system has a thalamic nucleus that receives, processes, and sends information to an associated cortical area.
Where is the thalamus on MRI?
The thalamus consists of large midline paired symmetrical ovoid deep grey mass of nuclei positioned in each hemisphere on each side of the third ventricle. They are located above the brainstem and are interconnected by the inter-thalamic adhesion.
What is thalamic lesion?
Thalamic lesions are usually more visible than cortical lesions, likely due to a higher density of myelin in the thalamus (32). Thalamic lesions occur in two main types, subependymal or perivascular, and are present in 42–97% of patients (33–35).
Are thalamic nuclei white matter?
Nuclei. The thalamus is surrounded by two thin layers of white matter. On its superior surface, it is covered by the stratum zonale and on its lateral surface by the external medullary lamina.
What are three functions of the thalamus?
While the thalamus is classically known for its roles as a sensory relay in visual, auditory, somatosensory, and gustatory systems, it also has significant roles in motor activity, emotion, memory, arousal, and other sensorimotor association functions.
Where thalamus is located?
The thalamus is located deep within the brain in the cerebral cortex, adjacent to the hypothalamus. It is a symmetrical structure, situated on top of the brain stem and on either side of the third cortex.
What causes thalamus damage?
This means they’re caused by a blocked artery in your brain, often due to a blood clot. Hemorrhagic strokes, on the other hand, are caused by a rupture or leakage of a blood vessel into your brain. A thalamic stroke can be either ischemic or hemorrhagic.
What disorders are associated with the thalamus?
Below are MeSH descriptors whose meaning is related to “Thalamic Diseases”.
- Brain Diseases.
- Acute Febrile Encephalopathy.
- Akinetic Mutism.
- Amblyopia.
- Amnesia, Transient Global.
- Auditory Diseases, Central.
- Basal Ganglia Diseases.
- Brain Abscess.
What is a thalamic tumor?
A thalamic glioma, as its name implies, is a glial tumor characterized by a primary growth center within or very near the thalamus. These tumors are very rare and account for a small minority of brain tumors in children and young adults.
What are the 5 functions of the thalamus?
Your thalamus has many functions, including:
- Relaying sensory information.
- Relaying motor (movement) information.
- Prioritizing attention.
- Role in consciousness.
- Role in thinking (cognition) and memory.
What are the 3 divisions of the thalamus?
The thalamus is a paired structure located in the center of the brain. Each side can divide into three groups of thalamic nuclei: a lateral nuclear group, a medial nuclear group, and an anterior nuclear group.
What senses does the thalamus control?
The thalamus (from the Greek thalamos or inner chamber) transmits 98 percent of sensory information to the cortex, including vision, taste, touch and balance; the only sense that doesn’t pass through this brain region is smell.
