The gills' large surface area tends to create a problem for fish that seek to regulate the osmolarity of their internal fluids.

Pressure of their incompressible internal bodily fluid on the body wall provides rigidity, and muscles are able to act against it.

The zek's body falls lifeless to the sand, leaking out all its internal fluids.

Here and there a shark drifted aimlessly, broken, oozing its internal fluids.

Iva survived when his father made a medicine from the internal fluids of a bio-engineered creature.

The internal working fluid was originally air, although in modern versions, other gases such as helium or hydrogen may be used.

A buildup of internal fluid pressing on the brain that could cause changes in perception and even personality was possible.

To do otherwise was to invite massive hemorrhaging and organ displacement due to the high pressure of the internal fluids.

Some believe flowers are hung by their stalks, allowing the internal fluids of the plant to remain in the flowers.