There are three main sections: cerebrum, cerebellum, and brainstem.
Other parts suggested as the 4th could be the diencephalon (thalamus and hypothalamus) or the corpus callosum between the right and left hemispheres of the cerebrum.
(see related links for diagrams)
We consider the brain in four sections, or lobes, by area. Each lobe extends across both hemispheres (halves) of the brain. They are the frontal, temporal, parietal, and occipital lobes.
the four sections created by the coordinate axes
Each of the four sections are called quadrants.
The Cerebrum: The cerebrum or cortex is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections, called "lobes": the frontal lobe, parietal lobe, occipital lobe, and temporal lobe.
quadrant
How are the four sections maked
the declaration has four major sections.
It is the third ventricle that appears as a narrow midline slit. The brain has four ventricles.
The Cartesian graph is divided into four sections called quadrants.
four
The four sections of a symphony orchestra are woodwinds, brass, strings, and percussion.
With regard to the largest portion of the brain, the telencephalon or the cerebrum, four main ones: frontal, temporal, parietal and occiptal. Of course, there is also the cerebellum and the brainstem. After that, subsections of the brain are named as well. There are also diencephalic (or deep brain) structures, underlying the cerebrum. There are many of these!