And so here's the front and the spine, and it's flat.

She had a spina bifida defect, a spinal cord abnormality.

A fractured spine?

A vertebrae.

There were chills up my spine

This sent shivers up my spine.

This is a bowhead whale.

This is a volcanic ridge.

We make maps of these mountain ranges with sound, with sonar, and this is one of those mountain ranges.

Umar also has polio.

Chills run up and down my spine.

My spine curves spiral.

Wait, poor spinal capacity.

Bugle. Chinese. Up on the ridge.

Here's the Sierra Magdalena.

This is the polio virus.

The climbers got on the southeast ridge.

It makes the backs of me legs go funny. Height always did.

Looks a little higher up on that ridge.

It'll break her backbone right away.

More myself was the backbone, of course.

This is a polio vaccine.

With polio it's almost completely different.

I'd broken my neck and my back in six places.

This is the view looking at the southeast ridge.

I thought Love Company were handling the ridge.

Fire one more round, then let's get the hell off this ridge.

Now that, if your spine is not held in a good position, will help bend your spine the wrong way, and so on.

The quick comment has pointed out that heroes are the backbone of the nation.

Now giving the polio vaccine is simple.

In the spinal ward, that's normal.

There is the brain stem in between the cerebral cortex and the spinal cord.

Take both machine guns. Set one up to hold that ridge.

A motorized traction table for stretching the spine.

The letter is inside the envelope.

And same thing for invertebrates. This is the example.

He suddenly felt a chill along his spine.

I've seen his Xrays. He has a crack in the lip of the vertebrate body.

They all laugh at you, they all point you out, don't you know that?

I said, the third!

What the polio eradication program is trying to do is to kill the virus itself that causes polio everywhere on Earth.

The spinal cord had breaks. The neurons were crossing in every which way.

We're not trying to control polio.

And there were climbers on that summit ridge.

This is a view taken along the summit ridge.