Lung Evolution

To the tune of "Stand By Me" by Ben E. King

Lungs likely evolved
In the common ancestor
Of the bony fishes
Homologous to
The swim bladder
Lungs evolved from air bladders

All lungs are fluid lined
And are highly vascularized
They cyclically will change size
Will change size

All lungs have cells
Producing surfactant
Preventing adhesion of the lung
Gills lack surfactant
So in air lamellae
Stick together and cannot be used for breathing

All lungs are fluid lined
And are highly vascularized
They cyclically will change size
Will change size
All lungs are fluid lined
And are highly vascularized
They cyclically will change size
Will change size



Credits
Writer(s): Leila Somani-davis
Lyrics powered by www.musixmatch.com

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