Fantastic Voyage

They're in the pulmonary artery.
They'll make up time once they get
through that and reach the pleural cavity.

Respiration post.
- What's his rate, Jack?
- Back to six per minute.

Dammit! I just had them cleaned.
They all lead to the same place:
the lungs.
Dr Michaels,
the channel is getting awfully narrow.

Yes, we're entering a capillary.
Try to stay in the middle.
The wall's transparent.
It's less than one ten-thousandth
of an inch thick. And porous.

Doctor, just think of it.
We're the first ones to actually see it happen.
The living process.
Mind letting me in on
what's going on out there?

It's just a simple exchange, Mr Grant.
Corpuscles releasing carbon dioxide
in return for oxygen
coming through on the other side.

- Don't tell me they're refuelling!
- Oxygenation.