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- Newly discovered part of the brain. In January, scientists described their discovery of a kind of shield in the brain that helps clear away waste and acts as a look-out post for immune cells.
- Squid and human brains tied by evolution. Despite the 500 million years of evolution that separate squids and humans, our brains develop in a very similar way to the brains of these cephalopods.
- 'Junk DNA' and big brains. The genes that enabled humans to grow notably big brains may have originally come from "junk DNA," which doesn't code for any proteins, researchers revealed early this year.
- Injuries plugged with minibrains. Scientists used cerebral organoids — miniature 3D models of the brain — to repair brain injuries in rats. The organoids were grown from human stem cells and transplanted into rats' visual cortices, the region of the brain where information from the eyes is initially processed.
What are the different parts of the brain? The human brain is divided into the forebrain, the midbrain, and the hindbrain. Each of these areas is divided further. - Image credit: Daniel Bright. 1. Cerebrum.
Nov 9, 2023 · The human brain is a complex organ, made up of several distinct parts, each responsible for different functions. The cerebrum, the largest part, is responsible for sensory interpretation, thought processing, and voluntary muscle activity.
- Prefrontal Cortex
- Motor Cortex
- Broca's Area
The most rostral portion of the frontal cortex is known as the prefrontal cortex, which encompasses the superior, middle and inferior frontal gyri of the frontal lobe. It plays a crucial role in the processing of intellectual and emotional information, including aggression, and facilitates judgement and decision-making.
The motor cortex corresponds to the precentral gyrus of the frontal lobe. The precentral gyrus contains the primary motor cortex(Brodmann area 4), which is responsible for integrating signals from different brain regions to modulate motor function. The primary motor cortex is where the corticospinal tract originates. Anterior to the primary motor c...
The inferior frontal gyrus is divided into three parts: i) the pars opercularis, ii) the pars triangularis, and iii) the pars orbitalis. Pars opercularis refers to the most dorsal part of the gyrus, pars triangularis is the middle triangularly-shaped part, while the pars orbitalis represents the most ventral part of the gyrus. Functionally, the par...
- Medical Content
- 18 min
The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body. Together, the brain and spinal cord that extends from it make up the central nervous system, or CNS.
What are the forms taken by our feelings, motivations, and memories? What structures actually turn all these sensations and cognitions into action—whether adaptive or maladaptive? Ramón y Cajal's discoveries enabled the visualisation of single cells within thin sections of brain tissue.
Mar 17, 2023 · The brain is an organ composed of nervous tissue that commands task-evoked responses, movement, senses, emotions, language, communication, thinking, and memory. The three main parts of the human brain are the cerebrum, cerebellum, and brainstem. See Image. Human Brain, Encephalon.
