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We'll see more of this busy area later in this tape, when we look at the vessels and nerves. Now we're almost ready to move on to look at the brain. Before we do that, let's review what we've seen of the cranial cavity and the meninges.

Here are the sphenoid ridges, and the petrous temporal bones, the anterior cranial fossa, middle cranial fossa, and posterior cranial fossa. Here's the dura on the outside, and on the inside.

Here are the falx, the tentorium, and the tentorial incisure. Here's the arachnoid, here's the pia. Here are the cisterns.

Here are the clinoid processes, and the pituitary fossa in the dry skull. Here are the same structures in a dissected specimen. Here's the site of the cavernous sinus, and of the trigeminal cave.