Starting stage Now we will get into the depths of the left hemisphere. We start from the surface and "cut" our way in to the middle line. There will be no difference if we do the same thing on the right side. So that "exercise" may be!

Step 1.

Examine the deeper parts of the brain from the outside inward. We start by developing the Island (insula). The island lies in the depths of the side channel and is covered by the forehead, crown and temple caps.

Step 2.

Locate the lateral furrow and forehead, crown, and temple caps

Step 3.

Remove the forehead, crown and temple caps When the lids are cut loose, the island (insula) lies exposed with its windings.

Step 4.

Continue the examination of the deep structures of the brain. If you now work your way deeper into the brain and peel away the bark layer - the island (insula) remains in the image - you get into the white matter. This consists of an almost unimaginably large number of thin myelinated and unmyelinated nerve fibers that are tightly packed together and form different types of conduction pathways.

Step 5.

Locate the major conduction pathways in the white matter of the hemisphere. The nerve fibre masses in the white matter form, among other things, 1/ different projection pathways which, via the so-called The corona radiata conveys the signal traffic between the cerebral cortex and lower levels of the central nervous system 2/ pathway systems that constitute transverse -commissural - connections between the bark areas of the two hemispheres of the brain and 3/ longitudinal - associative - connections between different cortex areas within the same hemisphere. These main types are depicted here as bunches of thin arrows. Different subdivisions are colored. Suggestion: turn everything off, and then choose what you want to see from the list!

Step 6.

Continue exploring the deeper parts of the brain. Explore the different structures in the order they are located, from top to bottom of the list, i.e. from the outside inward when it comes to the brain. Light and extinguish as you go! Then you are down at the end of the list and can start to go up and gradually light the structures again to get a little repetition. When one has finished exploring the deep structures, one can devote oneself solely to the positions and interrelationships of the different nuclei and/or refine the system of projection paths.

Step 7.

Explore the nuclei of the end brain (telencephalon). Gradually turn off the list from top to bottom; i.e. from the surface towards the mean line.

Step 8.

Explore the projection path system Suggestion: select "turn off all" and check the list from bottom to top.

Step 9.

Explore the ventricular system of the brain. Suggestion: select "turn off all" and check the list from bottom to top.

Step 10.

Explore the seahorse - hippocampus - area. The lateral ventricle is located superficially in the photo. It must be extinguished in order to "access" the seahorse and the seahorse band. Or: select "turn off all" and check the list from bottom to top.

The brain from the left: deep areas.