Ventral pleats is the bottom jaw of a whale that has the ability to expand when the whale drinks gallons of water. For more information go to YouTube and watch Episode 5 of "The Voyage of The Mimi."
a pleat is a fold of fab in order to reduce the "free fab" or "volume of fab" and to make it shaped to the body or wanted shape. you can make a pleat in a variety ways as: meeting pleats, chasing...
It is the area between the pia matter and the arachnoid membrane of the brain. The pia matter is part of the membrane that surrounds the brain and spinal cord. The arachnoid membrane is the inner...