What is the function of stria Medullaris?
The Stria medullaris (SM) Thalami is a discrete white matter tract that directly connects frontolimbic areas to the habenula, allowing the forebrain to influence midbrain monoaminergic output.
What does the extended amygdala do?
The extended amygdala is a macrostructure in the brain that is involved in reward cognition and defined by connectivity and neurochemical staining. It includes the central medial amygdala, sublenticular substantia innominata, the nucleus accumbens shell, and the bed nucleus of the stria terminalis.
What is striae terminalis?
The stria terminalis, also known as the terminal stria, is a fascicle of nerve fibers that runs across the lateral wall of the lateral intra-ventricular surface in a groove formed by the head of the caudate superiorly and the thalamus inferiorly.
Is the BNST in the hypothalamus?
The BNST is located ventral to the septum, above and below the anterior commissure and anterior to the hypothalamus. It is enclosed on both sides by the globus pallidus of the basal ganglia.
What is stria medullaris of thalamus?
The stria medullaris is a fiber bundle containing efferent fibers from the septal nuclei, lateral preoptico-hypothalamic region, and anterior thalamic nuclei to the habenula. It forms a horizontal ridge on the medial surface of the thalamus.
Where is stria medullaris thalami?
It forms a horizontal ridge on the medial surface of the thalamus, and is found on the border between dorsal and medial surfaces of thalamus.
Does dopamine come from the amygdala?
The amygdala is heavily innervated by dopamine [7], and in rodents, optogenetic stimulation of dopaminergic neurons [8], as well as systemic and amygdala-targeted administration of dopaminergic agonists, increase dopamine signaling and facilitate aversive learning [9].
What is Amygdaloid nucleus?
Amygdaloid nucleus: A small oval structure in the temporal lobe of the brain that is closely connected to the hypothalamus, the hippocampus, and the cingulate gyrus. The amygdaloid nucleus is part of the olefactory and limbic systems and plays a role in the sense of smell, motivation, and emotional behavior.
Where is the stria terminalis located?
The stria terminalis extends from the region of the interventricular foramina to the temporal horn of the lateral ventricle, carrying fibers from the amygdala to the septal nuclei, hypothalamic, and thalamic areas of the brain. It also carries fibers projecting from these areas back to the amygdala.
What is O tálamo?
O tálamo é a maior massa de substância cinzenta do diencéfalo e encontra-se lateralmente ao terceiro ventrículo. As metades simétricas dessa estrutura da linha estão localizadas entre o córtex cerebral e o mesencéfalo. Ele possui um pólo anterior e um pólo posterior, bem como superfícies superior, inferior, medial e lateral.
What is a metatálamo?
Metatálamo O metatálamo consiste de duas eminências ovais (os corpos geniculados ) na superfície caudal do diencéfalo, logo inferior à porção mais caudal do tálamo dorsal. Os corpos geniculados medial e lateral funcionam como uma estação de transmissão talâmica primária para os sistemas auditivo e óptico, respectivamente.