 Okay, this is our sacrum Okay, so the sacrum itself is actually five fused vertebrae together Makes up the bottom part of the spinal column So we're looking at the top part of it here Okay, so we can see The median sacral crest so this ridge that runs right down the middle Yeah, you can also see your sacral hiatus. So there's this opening here on the bottom This is typically only visible in a real skeleton not in any of the plastic models. You might be looking at The sacral for amens Okay, so these individual holes here If we flip it over We could see the sacral promontory right along here We can see the a la right off to the side You can see if we look down the middle here As you see this other large hole Right here where our spinal cord would actually enter in That's the sacral canal