Remembering Learning the HC MTL Teaching it

Apr 14, 2011 01:14 PM

The purpose of this node is to remind me how to relearn the HC MTL each time I do it....

(and it should be at least once per month) so that I can teach it.

Use the figures on pages 288 and 289 of Netter Neuroscience to do it.

288 is mid sagittal view of MTL  limbic forebrain

289 is a mid-coronal section thru the HC formation showing the seahorse.

I need to hold onto both.  in some detail.

Look at page 288  MTL  ....

what are the most important structures and landmarks...  either the biggest or the most

functionally important... this will tell you how to draw it... in what order  and

also what you can tolerate forgetting.

Biggest:   start with CC = corpus callosum (get the shape right) surrounded by

CG = cingulate gyrus.

Then draw the calcarine fissure (straight back from the CC)  and

draw the big cortex (oc, parietal frontal lobes) ending with the paraterminal gyrus at 3 PM.

Next draw the HC... it is a huge club hanging from the splenium of the CC.

Its  medial border is the DG dentate gyrus and Fimbria-fornix

(note...  wiki labels the fimbria as being part of the HC (which it is) but

it is far more commonly called  FIMBRIA-FORNIX as a part of the fornix (analogous to the fallopian tube fimbria).

fimbria = fringe.  the book by Per Anderson confirms this.

Next draw the rest of the temporal lobe including the uncus.

Below the UNCUS draw in the AMYGDALA and the stria terminalis connecting it to the hypothalamus.

Draw in the olfactory bulb sending afferents to both the amygdala (this smells rotten)

and to the SEPTAL NUCLEI in the subcallosal area (below the rostrum).