External gills usually contains muscle tissue, and may be moved by the animal as a free appendage, in order to stir up stagnant water. The stalk is lined by many thinly walled filaments (fimbriae), containing the majority of blood vessels used in gas exchange. Animals usually have one external gill originating on each gill arch (except the hyoid), which leads to there being three pairs of external gills in salamanders, and four in the gilled larvae of lungfish. External gills External gills are the gills of an animal, most typically an amphibian, that are exposed to the environment, rather than set inside
Gills Creek Semmes Lake, Upper Rocky Ford Lake, Rocky Ford Lake, and Cary Lake. The extensive flooding has caused several deaths, displaced an unknown number of residents, washed out a number of roads and bridges, and caused a yet-to-be-determined amount of property damage. The following is a list of crossings of Gills Creek. List may be incomplete. Begins at the Congaree River The Gills Creek Watershed Association is a partnership of citizens, government, organizations, and business dedicated to restoring and protecting the Gills Creek Watershed. Gills Creek Gills Creek is a stream in Richland County, South Carolina which drains into the Congaree