Bird breath ping.
They breath like birds......what in and out?
“All of these experiments showed the same result: The air flowed through the lungs in just one direction.
The unidirectional flow is caused by aerodynamic valves in the lungs: Air is inhaled through the trachea, or windpipe, then flows into two primary bronchi, or airways, each of which enters one of the alligator’s lungs. The bronchi branch into narrower airways, the first of which is bypassed by the incoming air because that branch makes a hairpin turn that acts as an aerodynamic valve; instead, the air flows into other bronchi, and down into even smaller airways where gases are exchanged with the blood.
The air, still moving in one direction, then flows from the smaller bronchi into the bypassed airway and then out of the lungs, completing a one-way loop.”
That’s interesting.
|
|||
Gods |
Thanks decimon. That's a Paul Lynde reference, ain't it? ;') |
||
· Discover · Nat Geographic · Texas AM Anthro News · Yahoo Anthro & Archaeo · Google · · The Archaeology Channel · Excerpt, or Link only? · cgk's list of ping lists · |