 temporal bone on the side in this visual the temporal bone is yellow and you can see I don't know about you but I look at the temporal bone and I'm like oh there's some stuff happening there. That's a weird-looking bone with lots of things poking around and hopefully some structures that you actually already know. There are four foramina that you are required to know that are actually holes going through the temporal bone and one of them you can see right here and I'm going to tell you where it is because just 100% because dude it's right there and it's it's really pretty. Isn't that pretty? That's your external auditory meatus. Let's see what we call it in here or canal. I'm cool with canal and check it out in rainbow marble rainbow skull. You can see that hole right there. It's big. It's on the outside. It's your external auditory. It's an ear zone. That one's easy. Do you notice this giant kind of bump on your temporal bone? You can actually palpate your temporal bone right now behind your ear. There's that big old bump and you already know it because what muscle do you know attaches to that bump? Let me flex that muscle for you. I mean contract that muscle for you and check it out. It's attaching right here to my temporal bone to what part of my temporal bone. That's the mastoid process. Now another landmark on my temporal bone. My mastoid process is here and you can feel that. I also have this like what it looks like a tooth. It looks like a dragon tooth or I mean because you know we've all seen dragon teeth before. It's this giant sharp pointy thing coming out nearby your mastoid process and it's called the styloid process and I don't know to me styloid sounds like pokey things so I think that it must have a similar meaning. On our plastic skulls there's the styloid process. It's like it's super obvious and you're like oh I will never get confused about the styloid process because it's so obvious. On our real skulls I think there's one of our real skulls that has an amazing styloid process but after that they are not amazing and it's because can you imagine how easy that thing is to break off when punk students go around throwing our skulls into the bone boxes? Yeah or the femur goes throwing into a bone box. Don't throw the skulls and while I'm here telling you what not to do. Don't, this is really tempting. When you are studying the skull when you come to class don't use a pencil as your pointer and certainly don't write on the skulls. I was just looking at skulls today and there was like writing on them. Are you kidding? I won't use a written-on skull for a quiz so and plus if I see you writing on your skull you're gonna have to like buy me a new one which you can imagine that that's not a cheap endeavor. So don't write on them and don't use your pencil to point because if you use your pencil to point then you write on them. I will provide you with pointers, these lovely soft pipe cleaners to point and that's perfect. Why did I go off on that little tangent? Oh because we have to be nice to our skulls to protect our styloid processes of our temporal bones. All right one more process on our temporal bone that's crazy obvious. Who's this guy do you think? Yes my friends you can feel it. Feel it all the way over here. That's actually part of the zygomatic arch. The zygomatic arch is interesting because it's the entire cheek bone. Look at this whole thing. That whole thing is a zygomatic arch but there is a temporal bone part of it and a zygomatic bone part of it and so the whole thing makes up your zygomatic arch. All right I want to show you, I want to show you where our holes are going to be in the temporal bone but first of all I want to show you a perspective of the temporal bone from the bottom of your skull and again there's lots of different ways that we can look at our skulls especially since they all have the top chopped off so that we can look inside. Pretty much look there's my styloid process. This is my mastoid process. There is a frayman called the stylo mastoid frayman. Yeah and guess where that is located? Right between them. That might be the easiest frayman to know out of all of them. There are other fraymans, foramina that we're going to know and those are actually easier to see from the looking down into where the brain would sit but take a look at how the temporal bone sits inside the skull itself. And there's two of them. Now there's this ridge in the temporal bone here and it's really rocky and kind of raised. I don't know if you can see this but it's right here. It's this big rocky region in our skull and that area really, really hard, really protective because what's inside of it? Your ear, all your sensory structures for your middle and inner ear are actually inside the temporal bone and when you look at your skull you'll be able to see depth that we can't see in this picture right here. Also passing through there, through the temporal bone is the carotid canal. Carotid canal is what's going to carry blood to the brain from the heart. That's a good thing to have. And then there's another canal, another hole that I mentioned. We have an internal auditory canal and that guy, it's actually this little teeny thing right here, but that's how the cranial nerve from the cranial nerve number eight gets from the brain into the inner ear to bring messages of sound to the brain for processing. That's your temporal bone. Temporal bone is not easy. There's lots of stuff going on there. But this view is nice because you can actually see where it is in relation to everybody else. Oxypital bone is next.