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Now, take a deep breath.

You've got this.

Okay.

Let's get started.

All right.

So we're going to just start with some crudden vertebral anatomy.

So, John, can you just tell me the basics of the anatomy of the vertebral artery?

Yeah, the vertebral artery is divided into four different segments.

When we think of V1, it originates off the subclavium and this continues to the framinos

...