Great video! An easier way to remember the somatotopic organization in each of the various tracts (upper body more medial, lower body more lateral etc. etc.) is just to remember that the information upper body will always be located CLOSER TO THE GRAY MATTER. Think of it like an elevator. For sensory pathways, the 'people' who got on first (most distal lower extremities) will crowd to the back (farther away from the gray matter) to make room for additional 'people' getting on as the elevator ascends (info from trunk, then upper extremities, will be closer and closer to the gray matter, as they are the last 'people' to get on). So whether it's the dorsal column or spinothalamic tracts, the cervical information will always be closer to the gray matter, while the sacral info will be farther from the gray matter. For motor pathways, the 'people' who are getting OFF first (cervical nerves) as the elevator descends will stand closer to the door (closer to the gray matter), while 'people' who have a long ways to go (sacral nerves, headed all the way for the lower body) will stand near the back of the elevator (farther from the gray matter).
Right- that’s why I emphasize proximity to the gray matter specifically. This will be easier than trying to recall medial/lateral. As long as you remember visually where the gray matter is, you should be able to keep it straight
This is the mnemonic that I was looking for, and I forgot where I heard it! I suppose by gray matter specifically, it's about distance to the horns. Thanks for the mnemonic!
Wow ur a lifesaver! All ur mnemonic videos are better than any college professor! Thank u for helping all us med students memorize things easier! Med student from Taiwan here~
Great video, I just want to help my colleagues that another great mnemonics I learned for fasciculus gracilis was that there can be found m. gracilis in a leg, so it carries information from this place.
