Starting stage. Set up the stage. Start by UNCHECKING according to the instructions below under the heading "In the image". Then center the image! Click 2x on the right arrow in the arrow cross and 1-2x on the bottom arrow. The figure here shows the central nervous system as seen from behind according to. the layout of the picture "Central Nervous System Nuclei". The slightly greyed areas of the spinal cord, brainstem and midbrain mark nuclei/neuron groups connected to the intermediate hemisphere zone and nucleus interpositus. Place and move the image around the way you want it on the screen and use different magnifications (Help) .

Step 1.

Step 1. Locate nucleus/neuronal groups that receive nerve signals from and transmit nerve signals to the intermediate hemisphere zone and nucleus interpositus. Light the intermediate hemisphere zone and nucleus interpositus. Enable List A, unfold it, select "turn off all," and light the steps in the list from top to bottom. Then collapse the list A and deselect it. Continue in the same way with list B.Om you light A together with B, and you will see that in several cases a core area can function both as a signal receiver and as a signal transmitter.

Step 2.

Step 2. Outflow pathways of nerve signals from the left intermediate hemisphere zone via the left nucleus interpositus to receiving nucleus/neuron groups. The intermediate hemisphere zone (1v) and nucleus interpositus (2v) are already marked (lit) on the left side. Leave them lit as you examine the rest of the step! The step includes twelve lists: 1v to 12v (v = left). Light and unfold the lists 3v to 12v, in turn, identify the different entries (extinguish/ignit) and link to the database if necessary. It is probably wise, until 5v, to first take each list individually and extinguish the reviewed list before going on the next. The lists 5v&9v are best investigated by first clicking on "turn off all" and then light the list from bottom to top! Then you can start over from 5v and leave the lists lit up as you go, to get a picture of the total signal output. Do not forget to move around in the image and to vary the magnification. (Help) . NB! The identification function!

Step 3.

Step 3. Inflow pathways of nerve signals to the left intermediate hemisphere zone and left nucleus interpositus. The intermediate hemisphere zone (1v) and nucleus interpositus (2v) are already marked (lit) on the left side. Leave them lit as you examine the rest of the step! The step includes eight new lists lists: 13v to 20v (v = left). Light and unfold the lists 13v to 20v, in turn, identify the different entries (extinguish/ignit) and link to the database if necessary. It is probably wise to first take each list individually and extinguish the just reviewed list before moving on to the next. Then you can start over from 13v and leave the lists lit up as you go. This provides a picture of the collected inflow pathways of nerve signals to the intermediate hemisphere zone and nucleus interpositus.

Step 4.

Step 4. The LEFT and RIGHT intermediate hemisphere zones together with the respective nucleus interpositus. Outflow and inflow of nerve signals. The intermediate hemisphere zone (1v,1h) and nucleus interpositus (2v,2h) are already marked (lit) on both sides! The step includes forty (40) lists: 1v to 20v and 1h to 20h (v = left, h = right). The purpose of the step is to build up the picture of all outflow and inflow pathways of nerve signals between the intermediate hemisphere zone with the nucleus interpositus and the rest of the central nervous system. The easiest way is probably to start with the right side (lists 1h to 20h, see the headings!) and do the same as you did in Step 2 and Step 3 (left side). Then light the lists 3v to 20v. The confusion that has then emerged can then be dissected by extinguishing and lighting in different combinations. You can also, with a slightly larger magnification, mouse click directly on the structure you are wondering about and thus get a name and information from the fact base. It is now free to mix and experiment!! When all lists have been extinguished, try to light 1v to 5v, 9v, 13v, 14v, 17v, 18v and 19v !!!! Notice how the flow of information in several places crosses over from the left half of the CNS to the right and vice versa and that it eventually results in movements, after all, being triggered on the side that received the sensory information. That last one sounds obvious and probably is until you have seen the wiring diagram. One wonders about the development mechanisms behind the connections!

LITTLE BRAIN,8. Spinocerebellum 2. Intermediate hemisphere zone (paravermis) with nucleus interpositus.