Quote:
Originally Posted by Lefty-Canuck
You know the diaphram is a muscle that expands and contracts?...and actually has a certain amount of movement...in a human it moves up and down and in 4 legged beasts it moves laterally back and forth....it doesn't move a lot but it does move...
Read this...first two paragraphs...you might learn something.
http://www.nhlbi.nih.gov/health/heal...athappens.html
....
LC |
Uh, Lefty-Canuck, regarding how the diaphragm moves, here are the first few lines from the nih site you asked us to read:
"
When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand."
The diaphragm performs the same function in all mammals, whether they be game or humans. When an elk inhales, his diaphragm shifts towards its pelvis, which increases the space in it's chest cavity and so expands the lungs. If elk walked on two feet, their diaphragm would move in the same way, down toward their pelvis.
I voted for the pass through.