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Vor 2 Tagen · The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It consists of nervous tissue and is typically located in the head ( cephalization ), usually near organs for special senses such as vision, hearing and olfaction.
Vor einem Tag · The brain is contained in, and protected by, the skull bones of the head . The cerebrum, the largest part of the human brain, consists of two cerebral hemispheres. Each hemisphere has an inner core composed of white matter, and an outer surface – the cerebral cortex – composed of grey matter.
Vor 3 Tagen · brain, the mass of nerve tissue in the anterior end of an organism. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the centre of learning. The human brain weighs approximately 1.4 kg (3 pounds) and is made up of billions of cells called neurons.
- The Editors of Encyclopaedia Britannica
Vor einem Tag · awareness or perception of an inward psychological or spiritual fact; intuitively perceived knowledge of something in one's inner self. inward awareness of an external object, state, or fact. concerned awareness; INTEREST, CONCERN— often used with an attributive noun [e.g. class consciousness]
Vor 17 Stunden · However, gut-brain signalling is only one way environmental factors can shape our brains. Countless more mechanisms are at play, and many are likely still unknown. As humans, we can selectively ...
Vor einem Tag · A Window Into the Brain. May 30, 2024. For the first time, ultrasound imaging has been used to image a patient's brain outside a hospital setting while the subject performs tasks such as video gaming and guitar playing. Using a cranial prosthetic that provides a literal window onto the brain through which ultrasound can pass unhindered, the ...
Vor 2 Tagen · Brain regions are defined by expert annotation and hierarchically segment the brain into nuclei and neuropil areas. The atlas also offers a large collection (>4,000) of single neuron morphologies, which have been genetically labeled in separate fish, traced, and computationally registered. This dataset can provide insights to morphological types and connectivity between regions. We continually ...
