The median brain (mesencephalon), unlike other parts of the brain, is less complicated. It distinguishes the roof and legs. The cavity of the middle brain is the aqueduct of the brain.
The intermediate brain (diencephalon) on the whole brain drug is not available for viewing, since it is completely hidden under the cerebral hemispheres. Only on the basis of the brain can you see the central part of the midbrain - the hypothalamus.
The third (III) ventriculus (ventriculus tertius) occupies a central position in the diencephalon. The cavity of the ventricle looks like a sagittally located narrow slit, bounded by 6 walls: two lateral, upper, lower, anterior and posterior.
The hypothalamus (hypothalamus) forms the lower parts of the intermediate brain and participates in the formation of the bottom of the third ventricle. The hypothalamus includes the visual crossover, the visual tract, the gray hillock with a funnel, and mastoid bodies.
The thalamus (thalamus dorsalis; syn: posterior thalamus, visual hillock) - a pair formation, having a shape close to ovoid, located on both sides of the third ventricle.
In the anterior part of each hemisphere of the large brain is the frontal lobe (lobus frontalis). It ends at the front with a frontal pole and is bounded from below by a lateral furrow (sulcus lateralis; sylvian furrow), and behind it by a deep central furrow.
Behind the central sulcus is the parietal lobe (lobus parietalis). The posterior border of this lobe is the parieto-occipital furrow (sulcus parietooccipitalis). This furrow is located on the medial surface of the cerebral hemisphere, deeply dissecting the upper edge of the hemisphere and passes to its upper-lateral surface.
The occipital lobe (lobus occipitalis) is located behind the parieto-occipital furrow and its conditional continuation on the upperlateral surface of the hemisphere. In comparison with other shares, it has small dimensions.
The temporal lobe (lobus temporalis) occupies the lower lobe segments of the hemisphere and is separated from the frontal and parietal lobes by a deep lateral groove. The margin of the temporal lobe, covering the islet portion, was called the temporal cover (operculum temporale).
The lateral ventricle (ventriculus lateralis) is located in the thickness of the cerebral hemisphere. There are two lateral ventricles: the left (first), corresponding to the left hemisphere, and the right (second), located in the right hemisphere of the large brain.
