today we're going over the easiest ways to remember the cranial Fram including two Fram that you want to be careful of on your next test so let's grab our skull here and if we pop off the top and look down into the cranium from above our first cranial nerve the old factory nerve passes through the copor plate which you can see here now the olfactory nerve sends a bunch of nerve fibers through the copor plate to reach the sinuses work can detect smells and odors to remember this just think if you can smell a plate of food it's because the nerve is passing through the copor plate or if you're having trouble remembering the term kbor just think this is the first cranial nerve and what's the first bed we sleep in as children a crib and that'll reminds you of the crib ofor plate next up we have the second cradle nerve the optic nerve which passes through the optic canals right here and right here so it goes straight through into the orbit like so so it's pretty easy to see on a Model but if you're looking at diagram the way I remember this is I basically just see this area right here it basically reminds me of the old turtle from Kung Fu Panda as you can see right here so where his eyes are that's where you'll find the optic canals leading to our eyes next we have the Superior or of fissure which is tucked underneath this process right here so you have to look underneath to find it a little bit right here so it's usually a little bit bigger than this in real life but this model is kind of fused together now if the optic Canal is like a stretch limousine for one VIP nerve the superior orbital fissure is like a subway car packed with six nerves and multiple vessels and why is Subway car because again you have to look underneath to find it now every nerve that allows the eye to actually move passes through here so that's the ocular motor nerve the trolear nerve and the abducent nerve they all inate the muscles that actually move the eye the superior oo fissure also contains the three branches of the Opthalmic nerve which is actually a branch of the trial nerve itself so jfy that's the frontal lacrimal and nasociliary nerves all branches of the Opthalmic nerve so it sounds like a lot but just remember it like a subway car first you go underneath to find it then the train starts moving and that reminds you of the three cranial nerves that actually move the eye and then you get off the train to remind you of the branches of the off thalmic nerve for the next frame and if we get a little closer you can see we had kind of have a diagonal row right here and since portra remember this kind of diagonal row so this is the framan rotundum right here the frame in ovali and then the framan spinosum so to remember the order of R I use the pneumonic rule out syphilis which sounds very weird but it will make sense in a second so we have these three framing but what goes through them well the trigal nerve has three branches that go through adjacent framing so we know the first Branch goes through the fissure the superior orbital fissure so that's right up here so so the next Branch must go through the next framan right next door so this is the framan rotundum and this is where the maxillary Branch goes through next up we have the framan ovali and that's where the last Branch the mandibular Branch goes through a few other neonics you can use here is you'll rot in Max security prison that's to remember the framan rotundum and the maxillary nerve and another one is a real man drinks Ovaltine that's for the mandibular nerve passing through the framan oval the next frame in in our line in our diagonal line right here is the frame in spinosum which does not carry a cranial nerve now the reason I like the pneumonic rule out syphilis is because it's very memorable obviously but it also reminds me that this is where you'll usually find the menal branch of the mandibular nerve and the middle menal artery and middle menal vein and since syphilis can cause menitis it reminds me that this is where you'll find a few of the menal related nerves and vessels syphilis also reminds me that the CR nerves avoid this framing now let's talk about this big framing right here this is the framan lerum and I think of it like the trapo door or the Fool's Gold of the cranium why because it's big it's big and it's right in the middle so you would just assume that something big and important pass through here but in actuality this hole is filled with carage in people at their birth so it's not even a real framing it's just a car this Junction and most models and diagrams don't make that clear which is why I think of it basic Al as a trap it looks so important but this is the way I remember it if you're talking about cranial nerves or big vessels and you pick the frame in the lerum it will lacerate your grade like most trap doors though there is a little bit of a secret here if you look at a different angle you'll see that there's another opening right here it doesn't really look great on the model but where I put these black dots this is the exit of the crowded Canal the internal cro artery comes up through here and then runs across the frame and lacerum which which again is just cartilage at this point and provides like a floor for the crowded artery but again the lacerum is a trap to distract you but if you look just a little bit closer kind of Hidden Away right here is something important the crowded Canal so if we keep moving down posterior we come to the internal acoustic meatus or meus if you're in the UK and you can recognize this because if you imagine a straight line from the external acoustic meatus right here your ear canal so if you think about a straight line going through there and it kind of adding up that's how you can recognize that this is the internal acoustic meatus now in my mind I do like to pronounce it meus like they do in the UK because it reminds me that this is where two nerves meet and face off the facial nerve and the vestibular cular nerve just like in the Thunderdome two nerves enter but only one nerve leaves the vestibular cular nerve ends its path inside the inner ear in here but the facial nerve actually does like a z path pattern and then comes out the bottom of the cranium right here at the stylomastoid framing so this is kind of like where two processes meet the styloid process and the mastoid process so the facial nerve comes out of here where these two processes meet at the Stylo mastoid framan all right so that's the internal acoustic matus let's move on to this big framan right here and just a little bit of a warning this pneumonic is a tiny bit spicy so just a heads up so this is The Jug framing which carries the cranial nerves 9 10 and 11 to remember this I use the pneumonic jugs XXX this is to remember that this framan has the first three cranial nerves with an X in their number so 9 10 and 11 now if we look at the underside of the cranium we can see the jugular framing right here very big very important but another framing to keep in mind is the crowed Canal the entrance to the crow canal is Right nearby so obviously the jugular and the cded are very interlined so if you find the jugular frame in you just have to go a tiny bit anterior and you'll find the entrance to the crow canal right there so that's the jugular frame in which carries cranial nerves 9 10 11 so you would kind of assume that the 12th cranial nerve the hypoglossal nerve would go through the framing right next door right here but again this is a little bit of a tricky area so this is actually the con canal and it's named because it comes through the conar FASA on the other side right there so this is the con canal and it actually just carries a small vein so I think of it as the conman of the cranium because again it looks like it would carry a cranial nerve but it does not if you're looking for the hypoglossal nerve and the hypoglossal canal the trick is to think of hypo means below or under so the hypoglossal canal is actually kind of below and under so if you can see it right there let's put a go through there so you can see it's kind of hidden underneath so I think of hypoglossal that reminds me that I can't just go for face value and pick this guy right here I have to look under look a little below and that's where I'll find the hypoglossal canal and that's where the hypoglossal nerve cranial nerve 12 goes through and finally we have the framan Magnum right here which is Latin for the great opening because this is the biggest framing in the skull so pretty easy to recognize all right so hopefully some of those tips helped you out as always thanks for watching and of course good luck on your next [Music] test