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Xochitecatl is located in a dominant position upon the summit of a 4 km-wide extinct volcano that forms a range of hills that rises approximately 200 meters above the floor of the Puebla-Tlaxcala Valley; the so-called Atlachino-Nativitas-Xochitecatl block, which is located in the centre of the valley.
It contains a sprawling palace with vibrantly colored murals painted in Maya style. The nearby site of Xochitecatl was a more public ceremonial complex associated with Cacaxtla. Cacaxtla and Xochitecatl prospered 650–900 CE, probably controlling important trade routes through the region with an enclave population of no more than 10,000 people.
The constant communication between the heart and the brain have proved invaluable to the interdisciplinary fields of neurological and cardiac diseases. [4] The fundamental understanding of the communication between the heart and the brain via the nervous system has led scientists towards an understanding of its elaborate circuitry.
Pulvinar is connected to many frontal regions of the frontal cortex and the ventral nucleus is involved in speech production. [5] The frontal speech regions of the brain have been shown to participate in speech sound perception. [5] Broca's Area is today still considered an important language center, playing a central role in processing syntax ...
The axons of the parvocellular neurosecretory neurons of the PVN project to the median eminence, a neurohemal organ at the base of the brain, where their neurosecretory nerve terminals release their hormones at the primary capillary plexus of the hypophyseal portal system. The median eminence contains fiber terminals from many hypothalamic ...
The activity in subcortical areas of the brain implied that the "hate circuit" involves the superior frontal gyrus, the putamen and the insula. [14] It has been theorized that the "putamen plays a role in the perception of contempt and disgust, and may be part of the motor system that's mobilized to take action." It was also found that the ...
In both humans and non-human primates, the auditory dorsal stream is responsible for sound localization, and is accordingly known as the auditory 'where' pathway. In humans, this pathway (especially in the left hemisphere) is also responsible for speech production, speech repetition, lip-reading, and phonological working memory and long-term ...
The posterior portion is considered part of the parietal lobe and deals with somatosensory of the distal limbs. While the boundary between the lobes, the central sulcus , is easy to locate on the lateral surface of the cerebral hemispheres, this boundary is often discerned in a cytoarchetectonic manner in cases where the central sulcus is not ...