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Therefore, the set of anatomical structures considered part of the limbic system is controversial. The following structures are, or have been considered, part of the limbic system: [11] [12] Cortical areas: Limbic lobe; Orbitofrontal cortex: a region in the frontal lobe involved in the process of decision-making
1.2.1 Pons. 1.2.2 Fourth ventricle. 1.2.3 Cerebellum. 2 Midbrain (mesencephalon) ... The human brain anatomical regions are ordered following standard neuroanatomy ...
Why the cortex wrinkles and folds is not well-understood, but gyrification has been linked to intelligence and neurological disorders, and a number of gyrification theories have been proposed. [74] These theories include those based on mechanical buckling, [75] [19] axonal tension, [76] and differential tangential expansion. [75]
Ventricular system – set of structures containing cerebrospinal fluid which bathes and cushions the brain and spinal cord within the skull; Cranial nerve – neuron bundles that connect to the brain on one end, and to locations outside the brain on the other, without having a junction inside the spinal column
A cross section of the lower part of the pons showing the pontine reticular formation labeled as #9. The human reticular formation is composed of almost 100 nuclei and contains many projections into the forebrain, brainstem, and cerebellum, among other regions. [6]
The pons and medulla are major structures found there. A new region of the brain developed in mammals about 250 million years after the appearance of the hindbrain. This region is known as the paleomammalian brain, the major parts of which are the hippocampi and amygdalas, often referred to as the limbic system. The limbic system deals with ...
The pons meets the medulla at the pontomedullary junction. [12] This region is supplied by the joining of the basilar, vertebral arteries. The posterior inferior cerebellar artery also joins from which a large number of perforating arteries arise. Lateral spinal arteries also emerge to supply the posterior surface of the medulla oblongata. [12]
Fornix as one of the limbic structures. Scheme of rhinencephalon. The fibers begin in the hippocampus on each side of the brain as fimbriae; the separate left and right sides are each called the crus of the fornix (plural crura). The bundles of fibers come together in the midline of the brain, forming the body of the fornix.