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A 2-D model of cortical sensory homunculus. A cortical homunculus (from Latin homunculus 'little man, miniature human' [1] [2]) is a distorted representation of the human body, based on a neurological "map" of the areas and portions of the human brain dedicated to processing motor functions, and/ or sensory functions, for different parts of the body.
The brain is the central organ of the human nervous system, and with the spinal cord, comprises the central nervous system. It consists of the cerebrum, the brainstem and the cerebellum. The brain controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sensory nervous system ...
The Big Brain Wojak is a variation with glasses, a significantly enlarged head, and visible brain wrinkles. The most common form of Big Brain Wojak has a head so comically large that the Wojak sits on it like a chair. The meme was initially used on 4chan to mock others' political or controversial opinions. It is typically used online when ...
Variation in size, weight, and shape of the brain can be found within reptiles. [54] For instance, crocodilians have the largest brain volume to body weight proportion, followed by turtles, lizards, and snakes. Reptiles vary in the investment in different brain sections. Crocodilians have the largest telencephalon, while snakes have the smallest.
The corpus callosum is only found in placental mammals. [1] It spans part of the longitudinal fissure , connecting the left and right cerebral hemispheres , enabling communication between them. It is the largest white matter structure in the human brain , about 10 cm (3.9 in) in length and consisting of 200–300 million axonal projections.
The deformed brain was found inside a roughly 2,600-year-old decapitated head that was excavated from a waterlogged pit in the U.K. in 2008. The image in the post is from a research paper about ...
The arbor vitae / ˌ ɑːr b ɔːr ˈ v aɪ t iː / (Latin for "tree of life") is the cerebellar white matter, so called for its branched, tree-like appearance.In some ways it more resembles a fern and is present in both cerebellar hemispheres. [1]
A man in France continues to puzzle scientists nearly a decade after he was found to be living with just 10 percent of a typical human brain. His case was originally published in The Lancet ...