The vertebrate brain is divided into three major divisions, the hindbrain, midbrain, and forebrain. The structure and function of the hindbrain and midbrain in humans is very similar to those in lower animals.
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What are the main parts/divisions of vertebrate (human) brain? The brain of the developing embryo first becomes apparent as an enlargement of the anterior end of the neural tube. As the brain enlarges, it differentiates into three portions: the forebrain or prosencephalon; mid brain or mesencephalon; and hind brain or rhombencephalon.
What Are the Regions of the Brain and How Do They Fit Into the Brain Structure? The three main parts of the brain are split amongst three regions developed during the embryonic period: the forebrain, midbrain and hindbrain.
The brain of the developing embryo first becomes apparent as an enlargement of the anterior end of the neural tube. As the brain enlarges, it differentiates into three portions: the forebrain or prosencephalon; mid brain or mesencephalon; and hind brain or rhombencephalon.
Located in the front and middle part of the brain, it accounts for 85% of the brain's weight. Of the three main parts of the brain, the cerebrum is considered the most recent to develop in human evolution.
Located in the front and middle part of the brain, it accounts for 85% of the brain's weight. Of the three main parts of the brain, the cerebrum is considered the most recent to develop in human evolution.
Together with the spinal cord, brain structure and function helps control the central nervous system— the main part of two that make up the human nervous system. (The other part, the peripheral nervous system, is made up of nerves and neurons that connect the central nervous system to the body's limbs and organs.)
It is separated from the parietal lobe by the parieto-occipital sulcus; from the temporal lobe by the lateral occipital sulcus; and from the cerebellum (the second part of the brain, coming up soon) by what is called the cerebellar tentorium (or tentorium cerebelli).
The cerebrum has two layers: one inner and one outer. The outer layer is known as the cerebral cortex (represented in red in the spinning image above). Most times, whenever you see photos of the brain, you are looking at the cerebral cortex.
Although each hemisphere is known for managing different functions, it is important to note that both handle most processes of the brain structure. The existence of the hemispheres is vital to our body's functions. The relationship between our brain and body is contralateral.
The frontal lobe is separated from the parietal lobe by the central sulcus and is protected by a singular frontal skull bone. The parietal lobe picks up where the frontal lobe ends and goes until the mid-back part of the brain (about where a ponytail would be).
Thanks to the corpus callosum (our brain's speedy switchboard), the left side of your brain can chat instantaneously with the right side of your brain.